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Finding the Fourth Proportional to 372,394.83, 558,154.71 and 172,292.43

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Solution

The fourth proportional to 372,394.83, 558,154.71 and 172,292.43 is: 258,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,394.83 : 558,154.71 = 172,292.43 : x
  2. Step 2: Convert to fraction form
    372,394.83/558,154.71 = 172,292.43/x
  3. Step 3: Cross multiply
    372,394.83x = 558,154.71 × 172,292.43
  4. Step 4: Simplify right side
    372,394.83x = 96,165,831,301.85
  5. Step 5: Solve for x
    x = 96,165,831,301.85/372,394.83
  6. Step 6: Final answer
    x = 258,236.21

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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.