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Finding the Fourth Proportional to 88,711.40, 133,067.10 and 57,218.60

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Solution

The fourth proportional to 88,711.40, 133,067.10 and 57,218.60 is: 85,827.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,711.40 : 133,067.10 = 57,218.60 : x
  2. Step 2: Convert to fraction form
    88,711.40/133,067.10 = 57,218.60/x
  3. Step 3: Cross multiply
    88,711.40x = 133,067.10 × 57,218.60
  4. Step 4: Simplify right side
    88,711.40x = 7,613,913,168.06
  5. Step 5: Solve for x
    x = 7,613,913,168.06/88,711.40
  6. Step 6: Final answer
    x = 85,827.90

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1.5x scale

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.