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Finding the Fourth Proportional to 124,489.40, 186,709.80 and 41,383.40

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Solution

The fourth proportional to 124,489.40, 186,709.80 and 41,383.40 is: 62,067.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,489.40 : 186,709.80 = 41,383.40 : x
  2. Step 2: Convert to fraction form
    124,489.40/186,709.80 = 41,383.40/x
  3. Step 3: Cross multiply
    124,489.40x = 186,709.80 × 41,383.40
  4. Step 4: Simplify right side
    124,489.40x = 7,726,686,337.32
  5. Step 5: Solve for x
    x = 7,726,686,337.32/124,489.40
  6. Step 6: Final answer
    x = 62,067.02

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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.