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Finding the Fourth Proportional to 100,506,064.85, 140,899,809.55 and 100,506,064.85

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Solution

The fourth proportional to 100,506,064.85, 140,899,809.55 and 100,506,064.85 is: 140,899,809.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,506,064.85 : 140,899,809.55 = 100,506,064.85 : x
  2. Step 2: Convert to fraction form
    100,506,064.85/140,899,809.55 = 100,506,064.85/x
  3. Step 3: Cross multiply
    100,506,064.85x = 140,899,809.55 × 100,506,064.85
  4. Step 4: Simplify right side
    100,506,064.85x = 14,161,285,395,984,950
  5. Step 5: Solve for x
    x = 14,161,285,395,984,950/100,506,064.85
  6. Step 6: Final answer
    x = 140,899,809.55

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.