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Finding the Fourth Proportional to 243,327.60, 364,992.28 and 74,846.78

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Solution

The fourth proportional to 243,327.60, 364,992.28 and 74,846.78 is: 112,270.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,327.60 : 364,992.28 = 74,846.78 : x
  2. Step 2: Convert to fraction form
    243,327.60/364,992.28 = 74,846.78/x
  3. Step 3: Cross multiply
    243,327.60x = 364,992.28 × 74,846.78
  4. Step 4: Simplify right side
    243,327.60x = 27,318,496,882.86
  5. Step 5: Solve for x
    x = 27,318,496,882.86/243,327.60
  6. Step 6: Final answer
    x = 112,270.44

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1.5x scale

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.