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Finding the Fourth Proportional to 111,765.60, 167,842.80 and 108,266.40

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Solution

The fourth proportional to 111,765.60, 167,842.80 and 108,266.40 is: 162,587.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,765.60 : 167,842.80 = 108,266.40 : x
  2. Step 2: Convert to fraction form
    111,765.60/167,842.80 = 108,266.40/x
  3. Step 3: Cross multiply
    111,765.60x = 167,842.80 × 108,266.40
  4. Step 4: Simplify right side
    111,765.60x = 18,171,735,721.92
  5. Step 5: Solve for x
    x = 18,171,735,721.92/111,765.60
  6. Step 6: Final answer
    x = 162,587.91

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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.