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Finding the Fourth Proportional to 88,124.92, 121,608.78 and 47,837.12

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Solution

The fourth proportional to 88,124.92, 121,608.78 and 47,837.12 is: 66,013.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,124.92 : 121,608.78 = 47,837.12 : x
  2. Step 2: Convert to fraction form
    88,124.92/121,608.78 = 47,837.12/x
  3. Step 3: Cross multiply
    88,124.92x = 121,608.78 × 47,837.12
  4. Step 4: Simplify right side
    88,124.92x = 5,817,413,801.91
  5. Step 5: Solve for x
    x = 5,817,413,801.91/88,124.92
  6. Step 6: Final answer
    x = 66,013.27

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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.