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Finding the Fourth Proportional to 79,117.56, 109,177.74 and 43,300.44

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Solution

The fourth proportional to 79,117.56, 109,177.74 and 43,300.44 is: 59,752.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,117.56 : 109,177.74 = 43,300.44 : x
  2. Step 2: Convert to fraction form
    79,117.56/109,177.74 = 43,300.44/x
  3. Step 3: Cross multiply
    79,117.56x = 109,177.74 × 43,300.44
  4. Step 4: Simplify right side
    79,117.56x = 4,727,444,180.21
  5. Step 5: Solve for x
    x = 4,727,444,180.21/79,117.56
  6. Step 6: Final answer
    x = 59,752.15

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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.