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Finding the Fourth Proportional to 243,032.72, 364,560.03 and 74,540.79

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Solution

The fourth proportional to 243,032.72, 364,560.03 and 74,540.79 is: 111,814.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,032.72 : 364,560.03 = 74,540.79 : x
  2. Step 2: Convert to fraction form
    243,032.72/364,560.03 = 74,540.79/x
  3. Step 3: Cross multiply
    243,032.72x = 364,560.03 × 74,540.79
  4. Step 4: Simplify right side
    243,032.72x = 27,174,592,638.62
  5. Step 5: Solve for x
    x = 27,174,592,638.62/243,032.72
  6. Step 6: Final answer
    x = 111,814.55

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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.