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Finding the Fourth Proportional to 502,618.83, 753,891.30 and 147,660.63

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Solution

The fourth proportional to 502,618.83, 753,891.30 and 147,660.63 is: 221,480.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,618.83 : 753,891.30 = 147,660.63 : x
  2. Step 2: Convert to fraction form
    502,618.83/753,891.30 = 147,660.63/x
  3. Step 3: Cross multiply
    502,618.83x = 753,891.30 × 147,660.63
  4. Step 4: Simplify right side
    502,618.83x = 111,320,064,309.52
  5. Step 5: Solve for x
    x = 111,320,064,309.52/502,618.83
  6. Step 6: Final answer
    x = 221,480.09

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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.