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Finding the Fourth Proportional to 83,991,820,515.70, 125,987,730,773.55 and 83,991,820,515.70

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Solution

The fourth proportional to 83,991,820,515.70, 125,987,730,773.55 and 83,991,820,515.70 is: 125,987,730,773.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,991,820,515.70 : 125,987,730,773.55 = 83,991,820,515.70 : x
  2. Step 2: Convert to fraction form
    83,991,820,515.70/125,987,730,773.55 = 83,991,820,515.70/x
  3. Step 3: Cross multiply
    83,991,820,515.70x = 125,987,730,773.55 × 83,991,820,515.70
  4. Step 4: Simplify right side
    83,991,820,515.70x = 10,581,938,870,312,343,961,600
  5. Step 5: Solve for x
    x = 10,581,938,870,312,343,961,600/83,991,820,515.70
  6. Step 6: Final answer
    x = 125,987,730,773.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.