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Finding the Fourth Proportional to 235,630.77, 353,478.98 and 75,711.52

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Solution

The fourth proportional to 235,630.77, 353,478.98 and 75,711.52 is: 113,577.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,630.77 : 353,478.98 = 75,711.52 : x
  2. Step 2: Convert to fraction form
    235,630.77/353,478.98 = 75,711.52/x
  3. Step 3: Cross multiply
    235,630.77x = 353,478.98 × 75,711.52
  4. Step 4: Simplify right side
    235,630.77x = 26,762,430,863.85
  5. Step 5: Solve for x
    x = 26,762,430,863.85/235,630.77
  6. Step 6: Final answer
    x = 113,577.83

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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.