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Finding the Fourth Proportional to 298,122.69, 447,127.00 and 115,753.51

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Solution

The fourth proportional to 298,122.69, 447,127.00 and 115,753.51 is: 173,608.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,122.69 : 447,127.00 = 115,753.51 : x
  2. Step 2: Convert to fraction form
    298,122.69/447,127.00 = 115,753.51/x
  3. Step 3: Cross multiply
    298,122.69x = 447,127.00 × 115,753.51
  4. Step 4: Simplify right side
    298,122.69x = 51,756,517,420.21
  5. Step 5: Solve for x
    x = 51,756,517,420.21/298,122.69
  6. Step 6: Final answer
    x = 173,608.11

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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.