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Finding the Fourth Proportional to 111,958.68, 154,517.58 and 64,202.70

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Solution

The fourth proportional to 111,958.68, 154,517.58 and 64,202.70 is: 88,608.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,958.68 : 154,517.58 = 64,202.70 : x
  2. Step 2: Convert to fraction form
    111,958.68/154,517.58 = 64,202.70/x
  3. Step 3: Cross multiply
    111,958.68x = 154,517.58 × 64,202.70
  4. Step 4: Simplify right side
    111,958.68x = 9,920,445,833.47
  5. Step 5: Solve for x
    x = 9,920,445,833.47/111,958.68
  6. Step 6: Final answer
    x = 88,608.10

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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.