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Finding the Fourth Proportional to 323,659.26, 485,488.22 and 87,001.97

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Solution

The fourth proportional to 323,659.26, 485,488.22 and 87,001.97 is: 130,502.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,659.26 : 485,488.22 = 87,001.97 : x
  2. Step 2: Convert to fraction form
    323,659.26/485,488.22 = 87,001.97/x
  3. Step 3: Cross multiply
    323,659.26x = 485,488.22 × 87,001.97
  4. Step 4: Simplify right side
    323,659.26x = 42,238,428,689.34
  5. Step 5: Solve for x
    x = 42,238,428,689.34/323,659.26
  6. Step 6: Final answer
    x = 130,502.77

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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.