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Finding the Fourth Proportional to 225,040.52, 310,555.14 and 124,438.52

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Solution

The fourth proportional to 225,040.52, 310,555.14 and 124,438.52 is: 171,724.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,040.52 : 310,555.14 = 124,438.52 : x
  2. Step 2: Convert to fraction form
    225,040.52/310,555.14 = 124,438.52/x
  3. Step 3: Cross multiply
    225,040.52x = 310,555.14 × 124,438.52
  4. Step 4: Simplify right side
    225,040.52x = 38,645,021,999.99
  5. Step 5: Solve for x
    x = 38,645,021,999.99/225,040.52
  6. Step 6: Final answer
    x = 171,724.73

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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.