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Finding the Fourth Proportional to 372,654, 558,985.32 and 92,173.68

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Solution

The fourth proportional to 372,654, 558,985.32 and 92,173.68 is: 138,261.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,654 : 558,985.32 = 92,173.68 : x
  2. Step 2: Convert to fraction form
    372,654/558,985.32 = 92,173.68/x
  3. Step 3: Cross multiply
    372,654x = 558,985.32 × 92,173.68
  4. Step 4: Simplify right side
    372,654x = 51,523,734,010.38
  5. Step 5: Solve for x
    x = 51,523,734,010.38/372,654
  6. Step 6: Final answer
    x = 138,261.59

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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.