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Finding the Fourth Proportional to 298,737.91, 448,293.67 and 121,244.90

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Solution

The fourth proportional to 298,737.91, 448,293.67 and 121,244.90 is: 181,943.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,737.91 : 448,293.67 = 121,244.90 : x
  2. Step 2: Convert to fraction form
    298,737.91/448,293.67 = 121,244.90/x
  3. Step 3: Cross multiply
    298,737.91x = 448,293.67 × 121,244.90
  4. Step 4: Simplify right side
    298,737.91x = 54,353,321,189.78
  5. Step 5: Solve for x
    x = 54,353,321,189.78/298,737.91
  6. Step 6: Final answer
    x = 181,943.17

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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.