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Finding the Fourth Proportional to 151,147.92, 208,580.76 and 87,484.44

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Solution

The fourth proportional to 151,147.92, 208,580.76 and 87,484.44 is: 120,726.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,147.92 : 208,580.76 = 87,484.44 : x
  2. Step 2: Convert to fraction form
    151,147.92/208,580.76 = 87,484.44/x
  3. Step 3: Cross multiply
    151,147.92x = 208,580.76 × 87,484.44
  4. Step 4: Simplify right side
    151,147.92x = 18,247,570,983.37
  5. Step 5: Solve for x
    x = 18,247,570,983.37/151,147.92
  6. Step 6: Final answer
    x = 120,726.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.