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Finding the Fourth Proportional to 72,876.90, 109,242.44 and 62,841

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Solution

The fourth proportional to 72,876.90, 109,242.44 and 62,841 is: 94,198.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,876.90 : 109,242.44 = 62,841 : x
  2. Step 2: Convert to fraction form
    72,876.90/109,242.44 = 62,841/x
  3. Step 3: Cross multiply
    72,876.90x = 109,242.44 × 62,841
  4. Step 4: Simplify right side
    72,876.90x = 6,864,904,172.04
  5. Step 5: Solve for x
    x = 6,864,904,172.04/72,876.90
  6. Step 6: Final answer
    x = 94,198.63

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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.