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Finding the Fourth Proportional to 113,856.80, 170,785.20 and 34,970.90

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Solution

The fourth proportional to 113,856.80, 170,785.20 and 34,970.90 is: 52,456.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,856.80 : 170,785.20 = 34,970.90 : x
  2. Step 2: Convert to fraction form
    113,856.80/170,785.20 = 34,970.90/x
  3. Step 3: Cross multiply
    113,856.80x = 170,785.20 × 34,970.90
  4. Step 4: Simplify right side
    113,856.80x = 5,972,512,150.68
  5. Step 5: Solve for x
    x = 5,972,512,150.68/113,856.80
  6. Step 6: Final answer
    x = 52,456.35

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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.