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Finding the Fourth Proportional to 125,147.61, 187,698.74 and 50,264.73

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Solution

The fourth proportional to 125,147.61, 187,698.74 and 50,264.73 is: 75,387.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,147.61 : 187,698.74 = 50,264.73 : x
  2. Step 2: Convert to fraction form
    125,147.61/187,698.74 = 50,264.73/x
  3. Step 3: Cross multiply
    125,147.61x = 187,698.74 × 50,264.73
  4. Step 4: Simplify right side
    125,147.61x = 9,434,626,236.12
  5. Step 5: Solve for x
    x = 9,434,626,236.12/125,147.61
  6. Step 6: Final answer
    x = 75,387.99

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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.