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Finding the Fourth Proportional to 243,326.86, 364,991.13 and 74,846.05

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Solution

The fourth proportional to 243,326.86, 364,991.13 and 74,846.05 is: 112,269.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,326.86 : 364,991.13 = 74,846.05 : x
  2. Step 2: Convert to fraction form
    243,326.86/364,991.13 = 74,846.05/x
  3. Step 3: Cross multiply
    243,326.86x = 364,991.13 × 74,846.05
  4. Step 4: Simplify right side
    243,326.86x = 27,318,144,365.54
  5. Step 5: Solve for x
    x = 27,318,144,365.54/243,326.86
  6. Step 6: Final answer
    x = 112,269.33

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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.