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Finding the Fourth Proportional to 111,722.92, 167,705.82 and 45,208.84

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Solution

The fourth proportional to 111,722.92, 167,705.82 and 45,208.84 is: 67,862.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,722.92 : 167,705.82 = 45,208.84 : x
  2. Step 2: Convert to fraction form
    111,722.92/167,705.82 = 45,208.84/x
  3. Step 3: Cross multiply
    111,722.92x = 167,705.82 × 45,208.84
  4. Step 4: Simplify right side
    111,722.92x = 7,581,785,583.45
  5. Step 5: Solve for x
    x = 7,581,785,583.45/111,722.92
  6. Step 6: Final answer
    x = 67,862.40

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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.