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Finding the Fourth Proportional to 79,500.77, 119,054.33 and 58,390.76

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Solution

The fourth proportional to 79,500.77, 119,054.33 and 58,390.76 is: 87,441.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,500.77 : 119,054.33 = 58,390.76 : x
  2. Step 2: Convert to fraction form
    79,500.77/119,054.33 = 58,390.76/x
  3. Step 3: Cross multiply
    79,500.77x = 119,054.33 × 58,390.76
  4. Step 4: Simplify right side
    79,500.77x = 6,951,672,141.73
  5. Step 5: Solve for x
    x = 6,951,672,141.73/79,500.77
  6. Step 6: Final answer
    x = 87,441.57

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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.