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Finding the Fourth Proportional to 124,473.85, 186,710.42 and 30,979.57

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Solution

The fourth proportional to 124,473.85, 186,710.42 and 30,979.57 is: 46,469.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,473.85 : 186,710.42 = 30,979.57 : x
  2. Step 2: Convert to fraction form
    124,473.85/186,710.42 = 30,979.57/x
  3. Step 3: Cross multiply
    124,473.85x = 186,710.42 × 30,979.57
  4. Step 4: Simplify right side
    124,473.85x = 5,784,208,371.22
  5. Step 5: Solve for x
    x = 5,784,208,371.22/124,473.85
  6. Step 6: Final answer
    x = 46,469.27

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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.