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Finding the Fourth Proportional to 125,894.88, 188,785.80 and 37,117.20

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Solution

The fourth proportional to 125,894.88, 188,785.80 and 37,117.20 is: 55,659.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,894.88 : 188,785.80 = 37,117.20 : x
  2. Step 2: Convert to fraction form
    125,894.88/188,785.80 = 37,117.20/x
  3. Step 3: Cross multiply
    125,894.88x = 188,785.80 × 37,117.20
  4. Step 4: Simplify right side
    125,894.88x = 7,007,200,295.76
  5. Step 5: Solve for x
    x = 7,007,200,295.76/125,894.88
  6. Step 6: Final answer
    x = 55,659.14

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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.