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Finding the Fourth Proportional to 108,458.70, 162,710.04 and 38,387.22

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Solution

The fourth proportional to 108,458.70, 162,710.04 and 38,387.22 is: 57,588.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,458.70 : 162,710.04 = 38,387.22 : x
  2. Step 2: Convert to fraction form
    108,458.70/162,710.04 = 38,387.22/x
  3. Step 3: Cross multiply
    108,458.70x = 162,710.04 × 38,387.22
  4. Step 4: Simplify right side
    108,458.70x = 6,245,986,101.69
  5. Step 5: Solve for x
    x = 6,245,986,101.69/108,458.70
  6. Step 6: Final answer
    x = 57,588.61

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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.