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Finding the Fourth Proportional to 265,231.80, 397,977.30 and 124,966.20

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Solution

The fourth proportional to 265,231.80, 397,977.30 and 124,966.20 is: 187,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,231.80 : 397,977.30 = 124,966.20 : x
  2. Step 2: Convert to fraction form
    265,231.80/397,977.30 = 124,966.20/x
  3. Step 3: Cross multiply
    265,231.80x = 397,977.30 × 124,966.20
  4. Step 4: Simplify right side
    265,231.80x = 49,733,710,867.26
  5. Step 5: Solve for x
    x = 49,733,710,867.26/265,231.80
  6. Step 6: Final answer
    x = 187,510.36

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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.