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Finding the Fourth Proportional to 79,255.80, 109,370.70 and 43,445.16

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Solution

The fourth proportional to 79,255.80, 109,370.70 and 43,445.16 is: 59,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,255.80 : 109,370.70 = 43,445.16 : x
  2. Step 2: Convert to fraction form
    79,255.80/109,370.70 = 43,445.16/x
  3. Step 3: Cross multiply
    79,255.80x = 109,370.70 × 43,445.16
  4. Step 4: Simplify right side
    79,255.80x = 4,751,627,560.81
  5. Step 5: Solve for x
    x = 4,751,627,560.81/79,255.80
  6. Step 6: Final answer
    x = 59,953.06

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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.