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Finding the Fourth Proportional to 146,781.77, 202,559.87 and 79,713.77

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Solution

The fourth proportional to 146,781.77, 202,559.87 and 79,713.77 is: 110,005.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,781.77 : 202,559.87 = 79,713.77 : x
  2. Step 2: Convert to fraction form
    146,781.77/202,559.87 = 79,713.77/x
  3. Step 3: Cross multiply
    146,781.77x = 202,559.87 × 79,713.77
  4. Step 4: Simplify right side
    146,781.77x = 16,146,810,074.90
  5. Step 5: Solve for x
    x = 16,146,810,074.90/146,781.77
  6. Step 6: Final answer
    x = 110,005.56

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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.