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Finding the Fourth Proportional to 372,397.86, 558,159.18 and 172,295.46

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Solution

The fourth proportional to 372,397.86, 558,159.18 and 172,295.46 is: 258,240.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,397.86 : 558,159.18 = 172,295.46 : x
  2. Step 2: Convert to fraction form
    372,397.86/558,159.18 = 172,295.46/x
  3. Step 3: Cross multiply
    372,397.86x = 558,159.18 × 172,295.46
  4. Step 4: Simplify right side
    372,397.86x = 96,168,292,671.32
  5. Step 5: Solve for x
    x = 96,168,292,671.32/372,397.86
  6. Step 6: Final answer
    x = 258,240.72

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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.