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Finding the Fourth Proportional to 144,569.92, 216,832.96 and 39,397.28

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Solution

The fourth proportional to 144,569.92, 216,832.96 and 39,397.28 is: 59,089.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,569.92 : 216,832.96 = 39,397.28 : x
  2. Step 2: Convert to fraction form
    144,569.92/216,832.96 = 39,397.28/x
  3. Step 3: Cross multiply
    144,569.92x = 216,832.96 × 39,397.28
  4. Step 4: Simplify right side
    144,569.92x = 8,542,628,838.35
  5. Step 5: Solve for x
    x = 8,542,628,838.35/144,569.92
  6. Step 6: Final answer
    x = 59,089.95

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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.