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Finding the Fourth Proportional to 113,954.80, 170,932.20 and 54,905.80

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Solution

The fourth proportional to 113,954.80, 170,932.20 and 54,905.80 is: 82,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,954.80 : 170,932.20 = 54,905.80 : x
  2. Step 2: Convert to fraction form
    113,954.80/170,932.20 = 54,905.80/x
  3. Step 3: Cross multiply
    113,954.80x = 170,932.20 × 54,905.80
  4. Step 4: Simplify right side
    113,954.80x = 9,385,169,186.76
  5. Step 5: Solve for x
    x = 9,385,169,186.76/113,954.80
  6. Step 6: Final answer
    x = 82,358.70

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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.