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Finding the Fourth Proportional to 372,549.86, 558,487.86 and 135,837.19

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Solution

The fourth proportional to 372,549.86, 558,487.86 and 135,837.19 is: 203,632.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,549.86 : 558,487.86 = 135,837.19 : x
  2. Step 2: Convert to fraction form
    372,549.86/558,487.86 = 135,837.19/x
  3. Step 3: Cross multiply
    372,549.86x = 558,487.86 × 135,837.19
  4. Step 4: Simplify right side
    372,549.86x = 75,863,419,362.82
  5. Step 5: Solve for x
    x = 75,863,419,362.82/372,549.86
  6. Step 6: Final answer
    x = 203,632.93

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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.