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Finding the Fourth Proportional to 225,402.50, 311,055.45 and 124,806.98

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Solution

The fourth proportional to 225,402.50, 311,055.45 and 124,806.98 is: 172,233.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,402.50 : 311,055.45 = 124,806.98 : x
  2. Step 2: Convert to fraction form
    225,402.50/311,055.45 = 124,806.98/x
  3. Step 3: Cross multiply
    225,402.50x = 311,055.45 × 124,806.98
  4. Step 4: Simplify right side
    225,402.50x = 38,821,891,327.04
  5. Step 5: Solve for x
    x = 38,821,891,327.04/225,402.50
  6. Step 6: Final answer
    x = 172,233.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.