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Finding the Fourth Proportional to 108,543.76, 149,708.10 and 95,091.68

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Solution

The fourth proportional to 108,543.76, 149,708.10 and 95,091.68 is: 131,154.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,543.76 : 149,708.10 = 95,091.68 : x
  2. Step 2: Convert to fraction form
    108,543.76/149,708.10 = 95,091.68/x
  3. Step 3: Cross multiply
    108,543.76x = 149,708.10 × 95,091.68
  4. Step 4: Simplify right side
    108,543.76x = 14,235,994,738.61
  5. Step 5: Solve for x
    x = 14,235,994,738.61/108,543.76
  6. Step 6: Final answer
    x = 131,154.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.