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Finding the Fourth Proportional to 117,701.40, 176,552.10 and 108,715.80

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Solution

The fourth proportional to 117,701.40, 176,552.10 and 108,715.80 is: 163,073.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,701.40 : 176,552.10 = 108,715.80 : x
  2. Step 2: Convert to fraction form
    117,701.40/176,552.10 = 108,715.80/x
  3. Step 3: Cross multiply
    117,701.40x = 176,552.10 × 108,715.80
  4. Step 4: Simplify right side
    117,701.40x = 19,194,002,793.18
  5. Step 5: Solve for x
    x = 19,194,002,793.18/117,701.40
  6. Step 6: Final answer
    x = 163,073.70

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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.