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Finding the Fourth Proportional to 372,395.73, 558,592.74 and 135,641.64

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Solution

The fourth proportional to 372,395.73, 558,592.74 and 135,641.64 is: 203,462.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,395.73 : 558,592.74 = 135,641.64 : x
  2. Step 2: Convert to fraction form
    372,395.73/558,592.74 = 135,641.64/x
  3. Step 3: Cross multiply
    372,395.73x = 558,592.74 × 135,641.64
  4. Step 4: Simplify right side
    372,395.73x = 75,768,435,345.69
  5. Step 5: Solve for x
    x = 75,768,435,345.69/372,395.73
  6. Step 6: Final answer
    x = 203,462.15

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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.