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Finding the Fourth Proportional to 74,061.72, 110,833.95 and 60,578.85

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Solution

The fourth proportional to 74,061.72, 110,833.95 and 60,578.85 is: 90,656.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,061.72 : 110,833.95 = 60,578.85 : x
  2. Step 2: Convert to fraction form
    74,061.72/110,833.95 = 60,578.85/x
  3. Step 3: Cross multiply
    74,061.72x = 110,833.95 × 60,578.85
  4. Step 4: Simplify right side
    74,061.72x = 6,714,193,231.96
  5. Step 5: Solve for x
    x = 6,714,193,231.96/74,061.72
  6. Step 6: Final answer
    x = 90,656.73

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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.