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Finding the Fourth Proportional to 113,115.60, 169,630.20 and 34,203.60

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Solution

The fourth proportional to 113,115.60, 169,630.20 and 34,203.60 is: 51,292.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,115.60 : 169,630.20 = 34,203.60 : x
  2. Step 2: Convert to fraction form
    113,115.60/169,630.20 = 34,203.60/x
  3. Step 3: Cross multiply
    113,115.60x = 169,630.20 × 34,203.60
  4. Step 4: Simplify right side
    113,115.60x = 5,801,963,508.72
  5. Step 5: Solve for x
    x = 5,801,963,508.72/113,115.60
  6. Step 6: Final answer
    x = 51,292.34

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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.