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Finding the Fourth Proportional to 72,843.84, 109,285.20 and 26,101.44

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Solution

The fourth proportional to 72,843.84, 109,285.20 and 26,101.44 is: 39,159.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,843.84 : 109,285.20 = 26,101.44 : x
  2. Step 2: Convert to fraction form
    72,843.84/109,285.20 = 26,101.44/x
  3. Step 3: Cross multiply
    72,843.84x = 109,285.20 × 26,101.44
  4. Step 4: Simplify right side
    72,843.84x = 2,852,501,090.69
  5. Step 5: Solve for x
    x = 2,852,501,090.69/72,843.84
  6. Step 6: Final answer
    x = 39,159.13

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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.