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Finding the Fourth Proportional to 372,044.52, 558,129.42 and 172,283.40

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Solution

The fourth proportional to 372,044.52, 558,129.42 and 172,283.40 is: 258,454.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,044.52 : 558,129.42 = 172,283.40 : x
  2. Step 2: Convert to fraction form
    372,044.52/558,129.42 = 172,283.40/x
  3. Step 3: Cross multiply
    372,044.52x = 558,129.42 × 172,283.40
  4. Step 4: Simplify right side
    372,044.52x = 96,156,434,117.63
  5. Step 5: Solve for x
    x = 96,156,434,117.63/372,044.52
  6. Step 6: Final answer
    x = 258,454.11

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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.