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Finding the Fourth Proportional to 111,241.62, 166,862.32 and 44,681.76

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Solution

The fourth proportional to 111,241.62, 166,862.32 and 44,681.76 is: 67,022.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,241.62 : 166,862.32 = 44,681.76 : x
  2. Step 2: Convert to fraction form
    111,241.62/166,862.32 = 44,681.76/x
  3. Step 3: Cross multiply
    111,241.62x = 166,862.32 × 44,681.76
  4. Step 4: Simplify right side
    111,241.62x = 7,455,702,135.28
  5. Step 5: Solve for x
    x = 7,455,702,135.28/111,241.62
  6. Step 6: Final answer
    x = 67,022.60

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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.