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Finding the Fourth Proportional to 79,496.20, 119,438.70 and 59,813.20

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Solution

The fourth proportional to 79,496.20, 119,438.70 and 59,813.20 is: 89,866.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,496.20 : 119,438.70 = 59,813.20 : x
  2. Step 2: Convert to fraction form
    79,496.20/119,438.70 = 59,813.20/x
  3. Step 3: Cross multiply
    79,496.20x = 119,438.70 × 59,813.20
  4. Step 4: Simplify right side
    79,496.20x = 7,144,010,850.84
  5. Step 5: Solve for x
    x = 7,144,010,850.84/79,496.20
  6. Step 6: Final answer
    x = 89,866.07

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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.