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Finding the Fourth Proportional to 113,300.64, 169,913.70 and 38,401.56

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Solution

The fourth proportional to 113,300.64, 169,913.70 and 38,401.56 is: 57,589.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,300.64 : 169,913.70 = 38,401.56 : x
  2. Step 2: Convert to fraction form
    113,300.64/169,913.70 = 38,401.56/x
  3. Step 3: Cross multiply
    113,300.64x = 169,913.70 × 38,401.56
  4. Step 4: Simplify right side
    113,300.64x = 6,524,951,145.37
  5. Step 5: Solve for x
    x = 6,524,951,145.37/113,300.64
  6. Step 6: Final answer
    x = 57,589.71

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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.