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Finding the Fourth Proportional to 502,461.65, 753,680.03 and 123,379.22

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Solution

The fourth proportional to 502,461.65, 753,680.03 and 123,379.22 is: 185,065.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,461.65 : 753,680.03 = 123,379.22 : x
  2. Step 2: Convert to fraction form
    502,461.65/753,680.03 = 123,379.22/x
  3. Step 3: Cross multiply
    502,461.65x = 753,680.03 × 123,379.22
  4. Step 4: Simplify right side
    502,461.65x = 92,988,455,498.28
  5. Step 5: Solve for x
    x = 92,988,455,498.28/502,461.65
  6. Step 6: Final answer
    x = 185,065.78

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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.