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Finding the Fourth Proportional to 111,040.40, 166,690.20 and 63,693.20

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Solution

The fourth proportional to 111,040.40, 166,690.20 and 63,693.20 is: 95,614.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,040.40 : 166,690.20 = 63,693.20 : x
  2. Step 2: Convert to fraction form
    111,040.40/166,690.20 = 63,693.20/x
  3. Step 3: Cross multiply
    111,040.40x = 166,690.20 × 63,693.20
  4. Step 4: Simplify right side
    111,040.40x = 10,617,032,246.64
  5. Step 5: Solve for x
    x = 10,617,032,246.64/111,040.40
  6. Step 6: Final answer
    x = 95,614.14

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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.