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Finding the Fourth Proportional to 79,719.60, 119,572.08 and 24,315.60

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Solution

The fourth proportional to 79,719.60, 119,572.08 and 24,315.60 is: 36,471.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,719.60 : 119,572.08 = 24,315.60 : x
  2. Step 2: Convert to fraction form
    79,719.60/119,572.08 = 24,315.60/x
  3. Step 3: Cross multiply
    79,719.60x = 119,572.08 × 24,315.60
  4. Step 4: Simplify right side
    79,719.60x = 2,907,466,868.45
  5. Step 5: Solve for x
    x = 2,907,466,868.45/79,719.60
  6. Step 6: Final answer
    x = 36,471.17

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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.