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Finding the Fourth Proportional to 127,200.38, 175,516.08 and 73,492.52

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Solution

The fourth proportional to 127,200.38, 175,516.08 and 73,492.52 is: 101,407.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,200.38 : 175,516.08 = 73,492.52 : x
  2. Step 2: Convert to fraction form
    127,200.38/175,516.08 = 73,492.52/x
  3. Step 3: Cross multiply
    127,200.38x = 175,516.08 × 73,492.52
  4. Step 4: Simplify right side
    127,200.38x = 12,899,119,019.72
  5. Step 5: Solve for x
    x = 12,899,119,019.72/127,200.38
  6. Step 6: Final answer
    x = 101,407.87

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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.