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Finding the Fourth Proportional to 64,362.92, 88,864.08 and 40,200.62

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Solution

The fourth proportional to 64,362.92, 88,864.08 and 40,200.62 is: 55,503.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,362.92 : 88,864.08 = 40,200.62 : x
  2. Step 2: Convert to fraction form
    64,362.92/88,864.08 = 40,200.62/x
  3. Step 3: Cross multiply
    64,362.92x = 88,864.08 × 40,200.62
  4. Step 4: Simplify right side
    64,362.92x = 3,572,391,111.73
  5. Step 5: Solve for x
    x = 3,572,391,111.73/64,362.92
  6. Step 6: Final answer
    x = 55,503.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.