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Finding the Fourth Proportional to 124,447.20, 186,670.80 and 111,616.80

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Solution

The fourth proportional to 124,447.20, 186,670.80 and 111,616.80 is: 167,425.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,447.20 : 186,670.80 = 111,616.80 : x
  2. Step 2: Convert to fraction form
    124,447.20/186,670.80 = 111,616.80/x
  3. Step 3: Cross multiply
    124,447.20x = 186,670.80 × 111,616.80
  4. Step 4: Simplify right side
    124,447.20x = 20,835,597,349.44
  5. Step 5: Solve for x
    x = 20,835,597,349.44/124,447.20
  6. Step 6: Final answer
    x = 167,425.20

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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.