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Finding the Fourth Proportional to 80,435.34, 110,991.87 and 44,616.42

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Solution

The fourth proportional to 80,435.34, 110,991.87 and 44,616.42 is: 61,565.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,435.34 : 110,991.87 = 44,616.42 : x
  2. Step 2: Convert to fraction form
    80,435.34/110,991.87 = 44,616.42/x
  3. Step 3: Cross multiply
    80,435.34x = 110,991.87 × 44,616.42
  4. Step 4: Simplify right side
    80,435.34x = 4,952,059,888.51
  5. Step 5: Solve for x
    x = 4,952,059,888.51/80,435.34
  6. Step 6: Final answer
    x = 61,565.72

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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.