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Finding the Fourth Proportional to 125,488.66, 188,238.12 and 31,996.84

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Solution

The fourth proportional to 125,488.66, 188,238.12 and 31,996.84 is: 47,996.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,488.66 : 188,238.12 = 31,996.84 : x
  2. Step 2: Convert to fraction form
    125,488.66/188,238.12 = 31,996.84/x
  3. Step 3: Cross multiply
    125,488.66x = 188,238.12 × 31,996.84
  4. Step 4: Simplify right side
    125,488.66x = 6,023,025,007.54
  5. Step 5: Solve for x
    x = 6,023,025,007.54/125,488.66
  6. Step 6: Final answer
    x = 47,996.57

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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.