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Finding the Fourth Proportional to 176,591.52, 243,691.12 and 100,117.67

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Solution

The fourth proportional to 176,591.52, 243,691.12 and 100,117.67 is: 138,159.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,591.52 : 243,691.12 = 100,117.67 : x
  2. Step 2: Convert to fraction form
    176,591.52/243,691.12 = 100,117.67/x
  3. Step 3: Cross multiply
    176,591.52x = 243,691.12 × 100,117.67
  4. Step 4: Simplify right side
    176,591.52x = 24,397,787,134.09
  5. Step 5: Solve for x
    x = 24,397,787,134.09/176,591.52
  6. Step 6: Final answer
    x = 138,159.45

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1.5x scale

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.