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Finding the Fourth Proportional to 131,735.40, 197,019.90 and 110,740.20

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Solution

The fourth proportional to 131,735.40, 197,019.90 and 110,740.20 is: 165,620.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,735.40 : 197,019.90 = 110,740.20 : x
  2. Step 2: Convert to fraction form
    131,735.40/197,019.90 = 110,740.20/x
  3. Step 3: Cross multiply
    131,735.40x = 197,019.90 × 110,740.20
  4. Step 4: Simplify right side
    131,735.40x = 21,818,023,129.98
  5. Step 5: Solve for x
    x = 21,818,023,129.98/131,735.40
  6. Step 6: Final answer
    x = 165,620.05

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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.