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Finding the Fourth Proportional to 121,165.55, 181,745.73 and 32,419.05

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Solution

The fourth proportional to 121,165.55, 181,745.73 and 32,419.05 is: 48,627.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,165.55 : 181,745.73 = 32,419.05 : x
  2. Step 2: Convert to fraction form
    121,165.55/181,745.73 = 32,419.05/x
  3. Step 3: Cross multiply
    121,165.55x = 181,745.73 × 32,419.05
  4. Step 4: Simplify right side
    121,165.55x = 5,892,023,908.16
  5. Step 5: Solve for x
    x = 5,892,023,908.16/121,165.55
  6. Step 6: Final answer
    x = 48,627.88

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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.