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Finding the Fourth Proportional to 113,081.60, 169,622.40 and 106,630.40

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Solution

The fourth proportional to 113,081.60, 169,622.40 and 106,630.40 is: 159,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,081.60 : 169,622.40 = 106,630.40 : x
  2. Step 2: Convert to fraction form
    113,081.60/169,622.40 = 106,630.40/x
  3. Step 3: Cross multiply
    113,081.60x = 169,622.40 × 106,630.40
  4. Step 4: Simplify right side
    113,081.60x = 18,086,904,360.96
  5. Step 5: Solve for x
    x = 18,086,904,360.96/113,081.60
  6. Step 6: Final answer
    x = 159,945.60

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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.