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Finding the Fourth Proportional to 79,812.81, 119,707.92 and 23,658.86

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Solution

The fourth proportional to 79,812.81, 119,707.92 and 23,658.86 is: 35,484.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,812.81 : 119,707.92 = 23,658.86 : x
  2. Step 2: Convert to fraction form
    79,812.81/119,707.92 = 23,658.86/x
  3. Step 3: Cross multiply
    79,812.81x = 119,707.92 × 23,658.86
  4. Step 4: Simplify right side
    79,812.81x = 2,832,152,321.63
  5. Step 5: Solve for x
    x = 2,832,152,321.63/79,812.81
  6. Step 6: Final answer
    x = 35,484.93

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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.