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Finding the Fourth Proportional to 79,281.72, 109,422.72 and 60,224.58

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Solution

The fourth proportional to 79,281.72, 109,422.72 and 60,224.58 is: 83,120.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.72 : 109,422.72 = 60,224.58 : x
  2. Step 2: Convert to fraction form
    79,281.72/109,422.72 = 60,224.58/x
  3. Step 3: Cross multiply
    79,281.72x = 109,422.72 × 60,224.58
  4. Step 4: Simplify right side
    79,281.72x = 6,589,937,354.46
  5. Step 5: Solve for x
    x = 6,589,937,354.46/79,281.72
  6. Step 6: Final answer
    x = 83,120.51

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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.