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Finding the Fourth Proportional to 92,910.68, 128,212.45 and 52,624.77

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Solution

The fourth proportional to 92,910.68, 128,212.45 and 52,624.77 is: 72,619.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,910.68 : 128,212.45 = 52,624.77 : x
  2. Step 2: Convert to fraction form
    92,910.68/128,212.45 = 52,624.77/x
  3. Step 3: Cross multiply
    92,910.68x = 128,212.45 × 52,624.77
  4. Step 4: Simplify right side
    92,910.68x = 6,747,150,954.95
  5. Step 5: Solve for x
    x = 6,747,150,954.95/92,910.68
  6. Step 6: Final answer
    x = 72,619.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.