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Finding the Fourth Proportional to 113,415.60, 170,116.20 and 38,535.60

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Solution

The fourth proportional to 113,415.60, 170,116.20 and 38,535.60 is: 57,800.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,415.60 : 170,116.20 = 38,535.60 : x
  2. Step 2: Convert to fraction form
    113,415.60/170,116.20 = 38,535.60/x
  3. Step 3: Cross multiply
    113,415.60x = 170,116.20 × 38,535.60
  4. Step 4: Simplify right side
    113,415.60x = 6,555,529,836.72
  5. Step 5: Solve for x
    x = 6,555,529,836.72/113,415.60
  6. Step 6: Final answer
    x = 57,800.95

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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.