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Finding the Fourth Proportional to 73,390.27, 110,050.70 and 28,432.68

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Solution

The fourth proportional to 73,390.27, 110,050.70 and 28,432.68 is: 42,635.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,390.27 : 110,050.70 = 28,432.68 : x
  2. Step 2: Convert to fraction form
    73,390.27/110,050.70 = 28,432.68/x
  3. Step 3: Cross multiply
    73,390.27x = 110,050.70 × 28,432.68
  4. Step 4: Simplify right side
    73,390.27x = 3,129,036,336.88
  5. Step 5: Solve for x
    x = 3,129,036,336.88/73,390.27
  6. Step 6: Final answer
    x = 42,635.57

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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.