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Finding the Fourth Proportional to 124,499.40, 186,724.80 and 41,393.40

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Solution

The fourth proportional to 124,499.40, 186,724.80 and 41,393.40 is: 62,082.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,499.40 : 186,724.80 = 41,393.40 : x
  2. Step 2: Convert to fraction form
    124,499.40/186,724.80 = 41,393.40/x
  3. Step 3: Cross multiply
    124,499.40x = 186,724.80 × 41,393.40
  4. Step 4: Simplify right side
    124,499.40x = 7,729,174,336.32
  5. Step 5: Solve for x
    x = 7,729,174,336.32/124,499.40
  6. Step 6: Final answer
    x = 62,082.02

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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.