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Finding the Fourth Proportional to 99,794.28, 137,482.18 and 69,524.85

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Solution

The fourth proportional to 99,794.28, 137,482.18 and 69,524.85 is: 95,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,794.28 : 137,482.18 = 69,524.85 : x
  2. Step 2: Convert to fraction form
    99,794.28/137,482.18 = 69,524.85/x
  3. Step 3: Cross multiply
    99,794.28x = 137,482.18 × 69,524.85
  4. Step 4: Simplify right side
    99,794.28x = 9,558,427,942.17
  5. Step 5: Solve for x
    x = 9,558,427,942.17/99,794.28
  6. Step 6: Final answer
    x = 95,781.32

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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.