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Finding the Fourth Proportional to 115,758.68, 174,505.65 and 108,043.11

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Solution

The fourth proportional to 115,758.68, 174,505.65 and 108,043.11 is: 162,874.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,758.68 : 174,505.65 = 108,043.11 : x
  2. Step 2: Convert to fraction form
    115,758.68/174,505.65 = 108,043.11/x
  3. Step 3: Cross multiply
    115,758.68x = 174,505.65 × 108,043.11
  4. Step 4: Simplify right side
    115,758.68x = 18,854,133,138.57
  5. Step 5: Solve for x
    x = 18,854,133,138.57/115,758.68
  6. Step 6: Final answer
    x = 162,874.47

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.