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Finding the Fourth Proportional to 372,308.56, 557,972.10 and 147,546.35

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Solution

The fourth proportional to 372,308.56, 557,972.10 and 147,546.35 is: 221,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,308.56 : 557,972.10 = 147,546.35 : x
  2. Step 2: Convert to fraction form
    372,308.56/557,972.10 = 147,546.35/x
  3. Step 3: Cross multiply
    372,308.56x = 557,972.10 × 147,546.35
  4. Step 4: Simplify right side
    372,308.56x = 82,326,748,909.38
  5. Step 5: Solve for x
    x = 82,326,748,909.38/372,308.56
  6. Step 6: Final answer
    x = 221,125.05

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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.