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Finding the Fourth Proportional to 124,519.40, 186,803.40 and 49,626.80

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Solution

The fourth proportional to 124,519.40, 186,803.40 and 49,626.80 is: 74,449.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,519.40 : 186,803.40 = 49,626.80 : x
  2. Step 2: Convert to fraction form
    124,519.40/186,803.40 = 49,626.80/x
  3. Step 3: Cross multiply
    124,519.40x = 186,803.40 × 49,626.80
  4. Step 4: Simplify right side
    124,519.40x = 9,270,454,971.12
  5. Step 5: Solve for x
    x = 9,270,454,971.12/124,519.40
  6. Step 6: Final answer
    x = 74,449.88

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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.