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Finding the Fourth Proportional to 79,892.74, 110,232.31 and 48,840.18

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Solution

The fourth proportional to 79,892.74, 110,232.31 and 48,840.18 is: 67,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,892.74 : 110,232.31 = 48,840.18 : x
  2. Step 2: Convert to fraction form
    79,892.74/110,232.31 = 48,840.18/x
  3. Step 3: Cross multiply
    79,892.74x = 110,232.31 × 48,840.18
  4. Step 4: Simplify right side
    79,892.74x = 5,383,765,862.22
  5. Step 5: Solve for x
    x = 5,383,765,862.22/79,892.74
  6. Step 6: Final answer
    x = 67,387.42

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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.