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Finding the Fourth Proportional to 225,988.92, 338,983.38 and 99,602.19

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Solution

The fourth proportional to 225,988.92, 338,983.38 and 99,602.19 is: 149,403.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,988.92 : 338,983.38 = 99,602.19 : x
  2. Step 2: Convert to fraction form
    225,988.92/338,983.38 = 99,602.19/x
  3. Step 3: Cross multiply
    225,988.92x = 338,983.38 × 99,602.19
  4. Step 4: Simplify right side
    225,988.92x = 33,763,487,021.60
  5. Step 5: Solve for x
    x = 33,763,487,021.60/225,988.92
  6. Step 6: Final answer
    x = 149,403.29

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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.