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Finding the Fourth Proportional to 78,832.52, 108,788.09 and 43,022.21

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Solution

The fourth proportional to 78,832.52, 108,788.09 and 43,022.21 is: 59,370.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,832.52 : 108,788.09 = 43,022.21 : x
  2. Step 2: Convert to fraction form
    78,832.52/108,788.09 = 43,022.21/x
  3. Step 3: Cross multiply
    78,832.52x = 108,788.09 × 43,022.21
  4. Step 4: Simplify right side
    78,832.52x = 4,680,304,053.48
  5. Step 5: Solve for x
    x = 4,680,304,053.48/78,832.52
  6. Step 6: Final answer
    x = 59,370.22

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1.5x scale

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.