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Finding the Fourth Proportional to 225,453.50, 311,125.92 and 124,851.50

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Solution

The fourth proportional to 225,453.50, 311,125.92 and 124,851.50 is: 172,295.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,453.50 : 311,125.92 = 124,851.50 : x
  2. Step 2: Convert to fraction form
    225,453.50/311,125.92 = 124,851.50/x
  3. Step 3: Cross multiply
    225,453.50x = 311,125.92 × 124,851.50
  4. Step 4: Simplify right side
    225,453.50x = 38,844,537,800.88
  5. Step 5: Solve for x
    x = 38,844,537,800.88/225,453.50
  6. Step 6: Final answer
    x = 172,295.12

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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.