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Finding the Fourth Proportional to 172,993.92, 238,731.84 and 93,505.92

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Solution

The fourth proportional to 172,993.92, 238,731.84 and 93,505.92 is: 129,038.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,993.92 : 238,731.84 = 93,505.92 : x
  2. Step 2: Convert to fraction form
    172,993.92/238,731.84 = 93,505.92/x
  3. Step 3: Cross multiply
    172,993.92x = 238,731.84 × 93,505.92
  4. Step 4: Simplify right side
    172,993.92x = 22,322,840,332.49
  5. Step 5: Solve for x
    x = 22,322,840,332.49/172,993.92
  6. Step 6: Final answer
    x = 129,038.29

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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.