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Finding the Fourth Proportional to 129,239.56, 193,859.40 and 40,500.01

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Solution

The fourth proportional to 129,239.56, 193,859.40 and 40,500.01 is: 60,750.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,239.56 : 193,859.40 = 40,500.01 : x
  2. Step 2: Convert to fraction form
    129,239.56/193,859.40 = 40,500.01/x
  3. Step 3: Cross multiply
    129,239.56x = 193,859.40 × 40,500.01
  4. Step 4: Simplify right side
    129,239.56x = 7,851,306,669.30
  5. Step 5: Solve for x
    x = 7,851,306,669.30/129,239.56
  6. Step 6: Final answer
    x = 60,750.03

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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.