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Finding the Fourth Proportional to 79,590.86, 119,366.40 and 23,419.76

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Solution

The fourth proportional to 79,590.86, 119,366.40 and 23,419.76 is: 35,123.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,590.86 : 119,366.40 = 23,419.76 : x
  2. Step 2: Convert to fraction form
    79,590.86/119,366.40 = 23,419.76/x
  3. Step 3: Cross multiply
    79,590.86x = 119,366.40 × 23,419.76
  4. Step 4: Simplify right side
    79,590.86x = 2,795,532,440.06
  5. Step 5: Solve for x
    x = 2,795,532,440.06/79,590.86
  6. Step 6: Final answer
    x = 35,123.79

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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.