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Finding the Fourth Proportional to 79,242.57, 118,856.70 and 29,323.08

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Solution

The fourth proportional to 79,242.57, 118,856.70 and 29,323.08 is: 43,981.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,242.57 : 118,856.70 = 29,323.08 : x
  2. Step 2: Convert to fraction form
    79,242.57/118,856.70 = 29,323.08/x
  3. Step 3: Cross multiply
    79,242.57x = 118,856.70 × 29,323.08
  4. Step 4: Simplify right side
    79,242.57x = 3,485,244,522.64
  5. Step 5: Solve for x
    x = 3,485,244,522.64/79,242.57
  6. Step 6: Final answer
    x = 43,981.97

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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.