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Finding the Fourth Proportional to 118,315.29, 176,933.90 and 88,350.57

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Solution

The fourth proportional to 118,315.29, 176,933.90 and 88,350.57 is: 132,123.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,315.29 : 176,933.90 = 88,350.57 : x
  2. Step 2: Convert to fraction form
    118,315.29/176,933.90 = 88,350.57/x
  3. Step 3: Cross multiply
    118,315.29x = 176,933.90 × 88,350.57
  4. Step 4: Simplify right side
    118,315.29x = 15,632,210,475.57
  5. Step 5: Solve for x
    x = 15,632,210,475.57/118,315.29
  6. Step 6: Final answer
    x = 132,123.33

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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.