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Finding the Fourth Proportional to 127,807.56, 176,375.13 and 74,124.41

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Solution

The fourth proportional to 127,807.56, 176,375.13 and 74,124.41 is: 102,292.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,807.56 : 176,375.13 = 74,124.41 : x
  2. Step 2: Convert to fraction form
    127,807.56/176,375.13 = 74,124.41/x
  3. Step 3: Cross multiply
    127,807.56x = 176,375.13 × 74,124.41
  4. Step 4: Simplify right side
    127,807.56x = 13,073,702,449.92
  5. Step 5: Solve for x
    x = 13,073,702,449.92/127,807.56
  6. Step 6: Final answer
    x = 102,292.09

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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.