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Finding the Fourth Proportional to 235,086.40, 352,111.20 and 124,148.80

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Solution

The fourth proportional to 235,086.40, 352,111.20 and 124,148.80 is: 185,949.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,086.40 : 352,111.20 = 124,148.80 : x
  2. Step 2: Convert to fraction form
    235,086.40/352,111.20 = 124,148.80/x
  3. Step 3: Cross multiply
    235,086.40x = 352,111.20 × 124,148.80
  4. Step 4: Simplify right side
    235,086.40x = 43,714,182,946.56
  5. Step 5: Solve for x
    x = 43,714,182,946.56/235,086.40
  6. Step 6: Final answer
    x = 185,949.43

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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.