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Finding the Fourth Proportional to 72,992.19, 109,478.87 and 23,077.36

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Solution

The fourth proportional to 72,992.19, 109,478.87 and 23,077.36 is: 34,613.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,992.19 : 109,478.87 = 23,077.36 : x
  2. Step 2: Convert to fraction form
    72,992.19/109,478.87 = 23,077.36/x
  3. Step 3: Cross multiply
    72,992.19x = 109,478.87 × 23,077.36
  4. Step 4: Simplify right side
    72,992.19x = 2,526,483,295.38
  5. Step 5: Solve for x
    x = 2,526,483,295.38/72,992.19
  6. Step 6: Final answer
    x = 34,613.06

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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.