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Finding the Fourth Proportional to 235,129.50, 352,707.62 and 75,219.48

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Solution

The fourth proportional to 235,129.50, 352,707.62 and 75,219.48 is: 112,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,129.50 : 352,707.62 = 75,219.48 : x
  2. Step 2: Convert to fraction form
    235,129.50/352,707.62 = 75,219.48/x
  3. Step 3: Cross multiply
    235,129.50x = 352,707.62 × 75,219.48
  4. Step 4: Simplify right side
    235,129.50x = 26,530,483,392.34
  5. Step 5: Solve for x
    x = 26,530,483,392.34/235,129.50
  6. Step 6: Final answer
    x = 112,833.50

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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.