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Finding the Fourth Proportional to 225,121.50, 310,677.39 and 124,519.50

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Solution

The fourth proportional to 225,121.50, 310,677.39 and 124,519.50 is: 171,842.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,121.50 : 310,677.39 = 124,519.50 : x
  2. Step 2: Convert to fraction form
    225,121.50/310,677.39 = 124,519.50/x
  3. Step 3: Cross multiply
    225,121.50x = 310,677.39 × 124,519.50
  4. Step 4: Simplify right side
    225,121.50x = 38,685,393,264.11
  5. Step 5: Solve for x
    x = 38,685,393,264.11/225,121.50
  6. Step 6: Final answer
    x = 171,842.29

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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.