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Finding the Fourth Proportional to 63,898.92, 88,218.18 and 40,058.28

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Solution

The fourth proportional to 63,898.92, 88,218.18 and 40,058.28 is: 55,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,898.92 : 88,218.18 = 40,058.28 : x
  2. Step 2: Convert to fraction form
    63,898.92/88,218.18 = 40,058.28/x
  3. Step 3: Cross multiply
    63,898.92x = 88,218.18 × 40,058.28
  4. Step 4: Simplify right side
    63,898.92x = 3,533,868,555.53
  5. Step 5: Solve for x
    x = 3,533,868,555.53/63,898.92
  6. Step 6: Final answer
    x = 55,304.04

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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.