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Finding the Fourth Proportional to 502,481.10, 753,721.65 and 186,872.70

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Solution

The fourth proportional to 502,481.10, 753,721.65 and 186,872.70 is: 280,309.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,481.10 : 753,721.65 = 186,872.70 : x
  2. Step 2: Convert to fraction form
    502,481.10/753,721.65 = 186,872.70/x
  3. Step 3: Cross multiply
    502,481.10x = 753,721.65 × 186,872.70
  4. Step 4: Simplify right side
    502,481.10x = 140,849,999,783.96
  5. Step 5: Solve for x
    x = 140,849,999,783.96/502,481.10
  6. Step 6: Final answer
    x = 280,309.05

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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.