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Finding the Fourth Proportional to 111,498.60, 167,442.30 and 107,999.40

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Solution

The fourth proportional to 111,498.60, 167,442.30 and 107,999.40 is: 162,187.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,498.60 : 167,442.30 = 107,999.40 : x
  2. Step 2: Convert to fraction form
    111,498.60/167,442.30 = 107,999.40/x
  3. Step 3: Cross multiply
    111,498.60x = 167,442.30 × 107,999.40
  4. Step 4: Simplify right side
    111,498.60x = 18,083,667,934.62
  5. Step 5: Solve for x
    x = 18,083,667,934.62/111,498.60
  6. Step 6: Final answer
    x = 162,187.40

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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.