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Finding the Fourth Proportional to 78,992.70, 118,489.27 and 22,837.38

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Solution

The fourth proportional to 78,992.70, 118,489.27 and 22,837.38 is: 34,256.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,992.70 : 118,489.27 = 22,837.38 : x
  2. Step 2: Convert to fraction form
    78,992.70/118,489.27 = 22,837.38/x
  3. Step 3: Cross multiply
    78,992.70x = 118,489.27 × 22,837.38
  4. Step 4: Simplify right side
    78,992.70x = 2,705,984,484.91
  5. Step 5: Solve for x
    x = 2,705,984,484.91/78,992.70
  6. Step 6: Final answer
    x = 34,256.13

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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.