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Finding the Fourth Proportional to 124,969.48, 187,451.82 and 36,219.40

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Solution

The fourth proportional to 124,969.48, 187,451.82 and 36,219.40 is: 54,328.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,969.48 : 187,451.82 = 36,219.40 : x
  2. Step 2: Convert to fraction form
    124,969.48/187,451.82 = 36,219.40/x
  3. Step 3: Cross multiply
    124,969.48x = 187,451.82 × 36,219.40
  4. Step 4: Simplify right side
    124,969.48x = 6,789,392,449.31
  5. Step 5: Solve for x
    x = 6,789,392,449.31/124,969.48
  6. Step 6: Final answer
    x = 54,328.40

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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.