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Finding the Fourth Proportional to 110,612.66, 166,085.14 and 63,281.20

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Solution

The fourth proportional to 110,612.66, 166,085.14 and 63,281.20 is: 95,016.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,612.66 : 166,085.14 = 63,281.20 : x
  2. Step 2: Convert to fraction form
    110,612.66/166,085.14 = 63,281.20/x
  3. Step 3: Cross multiply
    110,612.66x = 166,085.14 × 63,281.20
  4. Step 4: Simplify right side
    110,612.66x = 10,510,066,961.37
  5. Step 5: Solve for x
    x = 10,510,066,961.37/110,612.66
  6. Step 6: Final answer
    x = 95,016.85

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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.