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Finding the Fourth Proportional to 110,980.74, 166,487.68 and 40,854.72

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Solution

The fourth proportional to 110,980.74, 166,487.68 and 40,854.72 is: 61,288.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,980.74 : 166,487.68 = 40,854.72 : x
  2. Step 2: Convert to fraction form
    110,980.74/166,487.68 = 40,854.72/x
  3. Step 3: Cross multiply
    110,980.74x = 166,487.68 × 40,854.72
  4. Step 4: Simplify right side
    110,980.74x = 6,801,807,549.85
  5. Step 5: Solve for x
    x = 6,801,807,549.85/110,980.74
  6. Step 6: Final answer
    x = 61,288.18

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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.