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Finding the Fourth Proportional to 175,892.88, 242,736.84 and 100,439.76

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Solution

The fourth proportional to 175,892.88, 242,736.84 and 100,439.76 is: 138,609.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,892.88 : 242,736.84 = 100,439.76 : x
  2. Step 2: Convert to fraction form
    175,892.88/242,736.84 = 100,439.76/x
  3. Step 3: Cross multiply
    175,892.88x = 242,736.84 × 100,439.76
  4. Step 4: Simplify right side
    175,892.88x = 24,380,429,952.76
  5. Step 5: Solve for x
    x = 24,380,429,952.76/175,892.88
  6. Step 6: Final answer
    x = 138,609.53

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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.