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Finding the Fourth Proportional to 502,087.68, 753,131.52 and 147,101.76

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Solution

The fourth proportional to 502,087.68, 753,131.52 and 147,101.76 is: 220,652.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,087.68 : 753,131.52 = 147,101.76 : x
  2. Step 2: Convert to fraction form
    502,087.68/753,131.52 = 147,101.76/x
  3. Step 3: Cross multiply
    502,087.68x = 753,131.52 × 147,101.76
  4. Step 4: Simplify right side
    502,087.68x = 110,786,972,103.48
  5. Step 5: Solve for x
    x = 110,786,972,103.48/502,087.68
  6. Step 6: Final answer
    x = 220,652.64

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Similar ratio
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1.5x scale

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.