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Finding the Fourth Proportional to 235,130.50, 352,709.12 and 75,220.48

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Solution

The fourth proportional to 235,130.50, 352,709.12 and 75,220.48 is: 112,835.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,130.50 : 352,709.12 = 75,220.48 : x
  2. Step 2: Convert to fraction form
    235,130.50/352,709.12 = 75,220.48/x
  3. Step 3: Cross multiply
    235,130.50x = 352,709.12 × 75,220.48
  4. Step 4: Simplify right side
    235,130.50x = 26,530,948,930.68
  5. Step 5: Solve for x
    x = 26,530,948,930.68/235,130.50
  6. Step 6: Final answer
    x = 112,835.00

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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.