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Finding the Fourth Proportional to 150,587.87, 225,769.47 and 90,602.30

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Solution

The fourth proportional to 150,587.87, 225,769.47 and 90,602.30 is: 135,835.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,587.87 : 225,769.47 = 90,602.30 : x
  2. Step 2: Convert to fraction form
    150,587.87/225,769.47 = 90,602.30/x
  3. Step 3: Cross multiply
    150,587.87x = 225,769.47 × 90,602.30
  4. Step 4: Simplify right side
    150,587.87x = 20,455,232,122.93
  5. Step 5: Solve for x
    x = 20,455,232,122.93/150,587.87
  6. Step 6: Final answer
    x = 135,835.86

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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.