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Finding the Fourth Proportional to 159,127.90, 238,640.82 and 52,487.92

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Solution

The fourth proportional to 159,127.90, 238,640.82 and 52,487.92 is: 78,715.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,127.90 : 238,640.82 = 52,487.92 : x
  2. Step 2: Convert to fraction form
    159,127.90/238,640.82 = 52,487.92/x
  3. Step 3: Cross multiply
    159,127.90x = 238,640.82 × 52,487.92
  4. Step 4: Simplify right side
    159,127.90x = 12,525,760,268.89
  5. Step 5: Solve for x
    x = 12,525,760,268.89/159,127.90
  6. Step 6: Final answer
    x = 78,715.05

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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.