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Finding the Fourth Proportional to 111,753.60, 167,411.70 and 67,248.15

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Solution

The fourth proportional to 111,753.60, 167,411.70 and 67,248.15 is: 100,740.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,753.60 : 167,411.70 = 67,248.15 : x
  2. Step 2: Convert to fraction form
    111,753.60/167,411.70 = 67,248.15/x
  3. Step 3: Cross multiply
    111,753.60x = 167,411.70 × 67,248.15
  4. Step 4: Simplify right side
    111,753.60x = 11,258,127,113.36
  5. Step 5: Solve for x
    x = 11,258,127,113.36/111,753.60
  6. Step 6: Final answer
    x = 100,740.62

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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.