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Finding the Fourth Proportional to 108,503.91, 162,754.66 and 38,366.82

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Solution

The fourth proportional to 108,503.91, 162,754.66 and 38,366.82 is: 57,549.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,503.91 : 162,754.66 = 38,366.82 : x
  2. Step 2: Convert to fraction form
    108,503.91/162,754.66 = 38,366.82/x
  3. Step 3: Cross multiply
    108,503.91x = 162,754.66 × 38,366.82
  4. Step 4: Simplify right side
    108,503.91x = 6,244,379,186.86
  5. Step 5: Solve for x
    x = 6,244,379,186.86/108,503.91
  6. Step 6: Final answer
    x = 57,549.81

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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.