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Finding the Fourth Proportional to 79,612.74, 109,868.58 and 43,801.92

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Solution

The fourth proportional to 79,612.74, 109,868.58 and 43,801.92 is: 60,448.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,612.74 : 109,868.58 = 43,801.92 : x
  2. Step 2: Convert to fraction form
    79,612.74/109,868.58 = 43,801.92/x
  3. Step 3: Cross multiply
    79,612.74x = 109,868.58 × 43,801.92
  4. Step 4: Simplify right side
    79,612.74x = 4,812,454,751.67
  5. Step 5: Solve for x
    x = 4,812,454,751.67/79,612.74
  6. Step 6: Final answer
    x = 60,448.30

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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.