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Finding the Fourth Proportional to 372,641.52, 514,079.16 and 251,743.92

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Solution

The fourth proportional to 372,641.52, 514,079.16 and 251,743.92 is: 347,294.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,641.52 : 514,079.16 = 251,743.92 : x
  2. Step 2: Convert to fraction form
    372,641.52/514,079.16 = 251,743.92/x
  3. Step 3: Cross multiply
    372,641.52x = 514,079.16 × 251,743.92
  4. Step 4: Simplify right side
    372,641.52x = 129,416,302,928.71
  5. Step 5: Solve for x
    x = 129,416,302,928.71/372,641.52
  6. Step 6: Final answer
    x = 347,294.37

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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.