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Finding the Fourth Proportional to 235,138.80, 352,708.20 and 124,546.80

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Solution

The fourth proportional to 235,138.80, 352,708.20 and 124,546.80 is: 186,820.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,138.80 : 352,708.20 = 124,546.80 : x
  2. Step 2: Convert to fraction form
    235,138.80/352,708.20 = 124,546.80/x
  3. Step 3: Cross multiply
    235,138.80x = 352,708.20 × 124,546.80
  4. Step 4: Simplify right side
    235,138.80x = 43,928,677,643.76
  5. Step 5: Solve for x
    x = 43,928,677,643.76/235,138.80
  6. Step 6: Final answer
    x = 186,820.20

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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.