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Finding the Fourth Proportional to 117,267.68, 175,901.66 and 28,520.57

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Solution

The fourth proportional to 117,267.68, 175,901.66 and 28,520.57 is: 42,780.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,267.68 : 175,901.66 = 28,520.57 : x
  2. Step 2: Convert to fraction form
    117,267.68/175,901.66 = 28,520.57/x
  3. Step 3: Cross multiply
    117,267.68x = 175,901.66 × 28,520.57
  4. Step 4: Simplify right side
    117,267.68x = 5,016,814,585.04
  5. Step 5: Solve for x
    x = 5,016,814,585.04/117,267.68
  6. Step 6: Final answer
    x = 42,780.88

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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.