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Finding the Fourth Proportional to 122,987.70, 184,481.55 and 110,934.90

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Solution

The fourth proportional to 122,987.70, 184,481.55 and 110,934.90 is: 166,402.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,987.70 : 184,481.55 = 110,934.90 : x
  2. Step 2: Convert to fraction form
    122,987.70/184,481.55 = 110,934.90/x
  3. Step 3: Cross multiply
    122,987.70x = 184,481.55 × 110,934.90
  4. Step 4: Simplify right side
    122,987.70x = 20,465,442,301.10
  5. Step 5: Solve for x
    x = 20,465,442,301.10/122,987.70
  6. Step 6: Final answer
    x = 166,402.35

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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.