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Finding the Fourth Proportional to 335,124.52, 502,682.40 and 82,407.20

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Solution

The fourth proportional to 335,124.52, 502,682.40 and 82,407.20 is: 123,609.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,124.52 : 502,682.40 = 82,407.20 : x
  2. Step 2: Convert to fraction form
    335,124.52/502,682.40 = 82,407.20/x
  3. Step 3: Cross multiply
    335,124.52x = 502,682.40 × 82,407.20
  4. Step 4: Simplify right side
    335,124.52x = 41,424,649,073.28
  5. Step 5: Solve for x
    x = 41,424,649,073.28/335,124.52
  6. Step 6: Final answer
    x = 123,609.72

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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.