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Finding the Fourth Proportional to 71,093,999.70, 106,640,999.55 and 65,551,266.90

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Solution

The fourth proportional to 71,093,999.70, 106,640,999.55 and 65,551,266.90 is: 98,326,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,093,999.70 : 106,640,999.55 = 65,551,266.90 : x
  2. Step 2: Convert to fraction form
    71,093,999.70/106,640,999.55 = 65,551,266.90/x
  3. Step 3: Cross multiply
    71,093,999.70x = 106,640,999.55 × 65,551,266.90
  4. Step 4: Simplify right side
    71,093,999.70x = 6,990,452,623,984,830
  5. Step 5: Solve for x
    x = 6,990,452,623,984,830/71,093,999.70
  6. Step 6: Final answer
    x = 98,326,900.35

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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.