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Finding the Fourth Proportional to 161,645.97, 242,468.99 and 49,326.78

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Solution

The fourth proportional to 161,645.97, 242,468.99 and 49,326.78 is: 73,990.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,645.97 : 242,468.99 = 49,326.78 : x
  2. Step 2: Convert to fraction form
    161,645.97/242,468.99 = 49,326.78/x
  3. Step 3: Cross multiply
    161,645.97x = 242,468.99 × 49,326.78
  4. Step 4: Simplify right side
    161,645.97x = 11,960,215,374.15
  5. Step 5: Solve for x
    x = 11,960,215,374.15/161,645.97
  6. Step 6: Final answer
    x = 73,990.18

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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.