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Finding the Fourth Proportional to 242,656.88, 363,986.25 and 74,176.56

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Solution

The fourth proportional to 242,656.88, 363,986.25 and 74,176.56 is: 111,265.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,656.88 : 363,986.25 = 74,176.56 : x
  2. Step 2: Convert to fraction form
    242,656.88/363,986.25 = 74,176.56/x
  3. Step 3: Cross multiply
    242,656.88x = 363,986.25 × 74,176.56
  4. Step 4: Simplify right side
    242,656.88x = 26,999,246,092.37
  5. Step 5: Solve for x
    x = 26,999,246,092.37/242,656.88
  6. Step 6: Final answer
    x = 111,265.12

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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.