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Finding the Fourth Proportional to 110,115.92, 151,967.33 and 61,718.42

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Solution

The fourth proportional to 110,115.92, 151,967.33 and 61,718.42 is: 85,175.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,115.92 : 151,967.33 = 61,718.42 : x
  2. Step 2: Convert to fraction form
    110,115.92/151,967.33 = 61,718.42/x
  3. Step 3: Cross multiply
    110,115.92x = 151,967.33 × 61,718.42
  4. Step 4: Simplify right side
    110,115.92x = 9,379,183,499.22
  5. Step 5: Solve for x
    x = 9,379,183,499.22/110,115.92
  6. Step 6: Final answer
    x = 85,175.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.