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Finding the Fourth Proportional to 97,243.56, 145,630.20 and 80,480.19

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Solution

The fourth proportional to 97,243.56, 145,630.20 and 80,480.19 is: 120,525.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,243.56 : 145,630.20 = 80,480.19 : x
  2. Step 2: Convert to fraction form
    97,243.56/145,630.20 = 80,480.19/x
  3. Step 3: Cross multiply
    97,243.56x = 145,630.20 × 80,480.19
  4. Step 4: Simplify right side
    97,243.56x = 11,720,346,165.74
  5. Step 5: Solve for x
    x = 11,720,346,165.74/97,243.56
  6. Step 6: Final answer
    x = 120,525.68

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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.