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Finding the Fourth Proportional to 113,472.70, 170,209.05 and 106,474.30

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Solution

The fourth proportional to 113,472.70, 170,209.05 and 106,474.30 is: 159,711.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,472.70 : 170,209.05 = 106,474.30 : x
  2. Step 2: Convert to fraction form
    113,472.70/170,209.05 = 106,474.30/x
  3. Step 3: Cross multiply
    113,472.70x = 170,209.05 × 106,474.30
  4. Step 4: Simplify right side
    113,472.70x = 18,122,889,452.42
  5. Step 5: Solve for x
    x = 18,122,889,452.42/113,472.70
  6. Step 6: Final answer
    x = 159,711.45

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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.