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Finding the Fourth Proportional to 124,614.56, 171,531.60 and 108,670.88

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Solution

The fourth proportional to 124,614.56, 171,531.60 and 108,670.88 is: 149,585.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,614.56 : 171,531.60 = 108,670.88 : x
  2. Step 2: Convert to fraction form
    124,614.56/171,531.60 = 108,670.88/x
  3. Step 3: Cross multiply
    124,614.56x = 171,531.60 × 108,670.88
  4. Step 4: Simplify right side
    124,614.56x = 18,640,489,919.81
  5. Step 5: Solve for x
    x = 18,640,489,919.81/124,614.56
  6. Step 6: Final answer
    x = 149,585.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.