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Finding the Fourth Proportional to 111,979.60, 167,150.04 and 98,693.92

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Solution

The fourth proportional to 111,979.60, 167,150.04 and 98,693.92 is: 147,318.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,979.60 : 167,150.04 = 98,693.92 : x
  2. Step 2: Convert to fraction form
    111,979.60/167,150.04 = 98,693.92/x
  3. Step 3: Cross multiply
    111,979.60x = 167,150.04 × 98,693.92
  4. Step 4: Simplify right side
    111,979.60x = 16,496,692,675.76
  5. Step 5: Solve for x
    x = 16,496,692,675.76/111,979.60
  6. Step 6: Final answer
    x = 147,318.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.