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Finding the Fourth Proportional to 150,758.38, 225,841.92 and 87,445.45

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Solution

The fourth proportional to 150,758.38, 225,841.92 and 87,445.45 is: 130,996.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,758.38 : 225,841.92 = 87,445.45 : x
  2. Step 2: Convert to fraction form
    150,758.38/225,841.92 = 87,445.45/x
  3. Step 3: Cross multiply
    150,758.38x = 225,841.92 × 87,445.45
  4. Step 4: Simplify right side
    150,758.38x = 19,748,848,323.26
  5. Step 5: Solve for x
    x = 19,748,848,323.26/150,758.38
  6. Step 6: Final answer
    x = 130,996.69

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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.