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Finding the Fourth Proportional to 66,745,608.70, 100,118,413.05 and 62,068,927.90

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Solution

The fourth proportional to 66,745,608.70, 100,118,413.05 and 62,068,927.90 is: 93,103,391.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,745,608.70 : 100,118,413.05 = 62,068,927.90 : x
  2. Step 2: Convert to fraction form
    66,745,608.70/100,118,413.05 = 62,068,927.90/x
  3. Step 3: Cross multiply
    66,745,608.70x = 100,118,413.05 × 62,068,927.90
  4. Step 4: Simplify right side
    66,745,608.70x = 6,214,242,561,062,869
  5. Step 5: Solve for x
    x = 6,214,242,561,062,869/66,745,608.70
  6. Step 6: Final answer
    x = 93,103,391.85

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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.