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Finding the Fourth Proportional to 93,608,747.80, 140,413,121.70 and 42,590,411.80

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Solution

The fourth proportional to 93,608,747.80, 140,413,121.70 and 42,590,411.80 is: 63,885,617.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,608,747.80 : 140,413,121.70 = 42,590,411.80 : x
  2. Step 2: Convert to fraction form
    93,608,747.80/140,413,121.70 = 42,590,411.80/x
  3. Step 3: Cross multiply
    93,608,747.80x = 140,413,121.70 × 42,590,411.80
  4. Step 4: Simplify right side
    93,608,747.80x = 5,980,252,675,326,515
  5. Step 5: Solve for x
    x = 5,980,252,675,326,515/93,608,747.80
  6. Step 6: Final answer
    x = 63,885,617.70

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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.