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Finding the Fourth Proportional to 176,241.64, 243,132.90 and 122,654.44

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Solution

The fourth proportional to 176,241.64, 243,132.90 and 122,654.44 is: 169,207.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,241.64 : 243,132.90 = 122,654.44 : x
  2. Step 2: Convert to fraction form
    176,241.64/243,132.90 = 122,654.44/x
  3. Step 3: Cross multiply
    176,241.64x = 243,132.90 × 122,654.44
  4. Step 4: Simplify right side
    176,241.64x = 29,821,329,695.08
  5. Step 5: Solve for x
    x = 29,821,329,695.08/176,241.64
  6. Step 6: Final answer
    x = 169,207.06

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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.