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Finding the Fourth Proportional to 113,015.56, 169,532.74 and 56,826.76

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Solution

The fourth proportional to 113,015.56, 169,532.74 and 56,826.76 is: 85,244.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,015.56 : 169,532.74 = 56,826.76 : x
  2. Step 2: Convert to fraction form
    113,015.56/169,532.74 = 56,826.76/x
  3. Step 3: Cross multiply
    113,015.56x = 169,532.74 × 56,826.76
  4. Step 4: Simplify right side
    113,015.56x = 9,633,996,328.12
  5. Step 5: Solve for x
    x = 9,633,996,328.12/113,015.56
  6. Step 6: Final answer
    x = 85,244.87

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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.