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Finding the Fourth Proportional to 138,595.92, 207,730.89 and 62,605.77

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Solution

The fourth proportional to 138,595.92, 207,730.89 and 62,605.77 is: 93,835.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,595.92 : 207,730.89 = 62,605.77 : x
  2. Step 2: Convert to fraction form
    138,595.92/207,730.89 = 62,605.77/x
  3. Step 3: Cross multiply
    138,595.92x = 207,730.89 × 62,605.77
  4. Step 4: Simplify right side
    138,595.92x = 13,005,152,321.24
  5. Step 5: Solve for x
    x = 13,005,152,321.24/138,595.92
  6. Step 6: Final answer
    x = 93,835.03

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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.