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Finding the Fourth Proportional to 113,840.60, 170,744.70 and 38,964.20

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Solution

The fourth proportional to 113,840.60, 170,744.70 and 38,964.20 is: 58,440.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,840.60 : 170,744.70 = 38,964.20 : x
  2. Step 2: Convert to fraction form
    113,840.60/170,744.70 = 38,964.20/x
  3. Step 3: Cross multiply
    113,840.60x = 170,744.70 × 38,964.20
  4. Step 4: Simplify right side
    113,840.60x = 6,652,930,639.74
  5. Step 5: Solve for x
    x = 6,652,930,639.74/113,840.60
  6. Step 6: Final answer
    x = 58,440.76

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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.