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Finding the Fourth Proportional to 502,540.05, 753,884.80 and 165,518.49

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Solution

The fourth proportional to 502,540.05, 753,884.80 and 165,518.49 is: 248,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,540.05 : 753,884.80 = 165,518.49 : x
  2. Step 2: Convert to fraction form
    502,540.05/753,884.80 = 165,518.49/x
  3. Step 3: Cross multiply
    502,540.05x = 753,884.80 × 165,518.49
  4. Step 4: Simplify right side
    502,540.05x = 124,781,873,729.95
  5. Step 5: Solve for x
    x = 124,781,873,729.95/502,540.05
  6. Step 6: Final answer
    x = 248,302.35

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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.