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Finding the Fourth Proportional to 113,888.92, 170,869.92 and 54,728.88

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Solution

The fourth proportional to 113,888.92, 170,869.92 and 54,728.88 is: 82,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,888.92 : 170,869.92 = 54,728.88 : x
  2. Step 2: Convert to fraction form
    113,888.92/170,869.92 = 54,728.88/x
  3. Step 3: Cross multiply
    113,888.92x = 170,869.92 × 54,728.88
  4. Step 4: Simplify right side
    113,888.92x = 9,351,519,347.29
  5. Step 5: Solve for x
    x = 9,351,519,347.29/113,888.92
  6. Step 6: Final answer
    x = 82,110.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.