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Finding the Fourth Proportional to 502,086.64, 753,130.02 and 147,100.72

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Solution

The fourth proportional to 502,086.64, 753,130.02 and 147,100.72 is: 220,651.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,086.64 : 753,130.02 = 147,100.72 : x
  2. Step 2: Convert to fraction form
    502,086.64/753,130.02 = 147,100.72/x
  3. Step 3: Cross multiply
    502,086.64x = 753,130.02 × 147,100.72
  4. Step 4: Simplify right side
    502,086.64x = 110,785,968,195.61
  5. Step 5: Solve for x
    x = 110,785,968,195.61/502,086.64
  6. Step 6: Final answer
    x = 220,651.10

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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.