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Finding the Fourth Proportional to 113,605.70, 156,787.54 and 68,298.44

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Solution

The fourth proportional to 113,605.70, 156,787.54 and 68,298.44 is: 94,258.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,605.70 : 156,787.54 = 68,298.44 : x
  2. Step 2: Convert to fraction form
    113,605.70/156,787.54 = 68,298.44/x
  3. Step 3: Cross multiply
    113,605.70x = 156,787.54 × 68,298.44
  4. Step 4: Simplify right side
    113,605.70x = 10,708,344,393.44
  5. Step 5: Solve for x
    x = 10,708,344,393.44/113,605.70
  6. Step 6: Final answer
    x = 94,258.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.