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Finding the Fourth Proportional to 108,487.97, 162,757.94 and 45,272.93

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Solution

The fourth proportional to 108,487.97, 162,757.94 and 45,272.93 is: 67,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,487.97 : 162,757.94 = 45,272.93 : x
  2. Step 2: Convert to fraction form
    108,487.97/162,757.94 = 45,272.93/x
  3. Step 3: Cross multiply
    108,487.97x = 162,757.94 × 45,272.93
  4. Step 4: Simplify right side
    108,487.97x = 7,368,527,784.41
  5. Step 5: Solve for x
    x = 7,368,527,784.41/108,487.97
  6. Step 6: Final answer
    x = 67,920.23

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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.