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Finding the Fourth Proportional to 502,080.40, 753,115.80 and 123,002.80

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Solution

The fourth proportional to 502,080.40, 753,115.80 and 123,002.80 is: 184,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,080.40 : 753,115.80 = 123,002.80 : x
  2. Step 2: Convert to fraction form
    502,080.40/753,115.80 = 123,002.80/x
  3. Step 3: Cross multiply
    502,080.40x = 753,115.80 × 123,002.80
  4. Step 4: Simplify right side
    502,080.40x = 92,635,352,124.24
  5. Step 5: Solve for x
    x = 92,635,352,124.24/502,080.40
  6. Step 6: Final answer
    x = 184,503.02

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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.