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Finding the Fourth Proportional to 88,732.60, 133,098.90 and 82,857.40

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Solution

The fourth proportional to 88,732.60, 133,098.90 and 82,857.40 is: 124,286.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,732.60 : 133,098.90 = 82,857.40 : x
  2. Step 2: Convert to fraction form
    88,732.60/133,098.90 = 82,857.40/x
  3. Step 3: Cross multiply
    88,732.60x = 133,098.90 × 82,857.40
  4. Step 4: Simplify right side
    88,732.60x = 11,028,228,796.86
  5. Step 5: Solve for x
    x = 11,028,228,796.86/88,732.60
  6. Step 6: Final answer
    x = 124,286.10

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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.