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Finding the Fourth Proportional to 235,746.87, 353,689.20 and 75,819.21

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Solution

The fourth proportional to 235,746.87, 353,689.20 and 75,819.21 is: 113,750.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,746.87 : 353,689.20 = 75,819.21 : x
  2. Step 2: Convert to fraction form
    235,746.87/353,689.20 = 75,819.21/x
  3. Step 3: Cross multiply
    235,746.87x = 353,689.20 × 75,819.21
  4. Step 4: Simplify right side
    235,746.87x = 26,816,434,829.40
  5. Step 5: Solve for x
    x = 26,816,434,829.40/235,746.87
  6. Step 6: Final answer
    x = 113,750.97

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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.