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Finding the Fourth Proportional to 64,670,896.80, 97,006,345.20 and 39,098,743.20

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Solution

The fourth proportional to 64,670,896.80, 97,006,345.20 and 39,098,743.20 is: 58,648,114.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,670,896.80 : 97,006,345.20 = 39,098,743.20 : x
  2. Step 2: Convert to fraction form
    64,670,896.80/97,006,345.20 = 39,098,743.20/x
  3. Step 3: Cross multiply
    64,670,896.80x = 97,006,345.20 × 39,098,743.20
  4. Step 4: Simplify right side
    64,670,896.80x = 3,792,826,179,745,353
  5. Step 5: Solve for x
    x = 3,792,826,179,745,353/64,670,896.80
  6. Step 6: Final answer
    x = 58,648,114.80

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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.