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Finding the Fourth Proportional to 215,043.68, 322,663.44 and 109,808.48

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Solution

The fourth proportional to 215,043.68, 322,663.44 and 109,808.48 is: 164,762.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,043.68 : 322,663.44 = 109,808.48 : x
  2. Step 2: Convert to fraction form
    215,043.68/322,663.44 = 109,808.48/x
  3. Step 3: Cross multiply
    215,043.68x = 322,663.44 × 109,808.48
  4. Step 4: Simplify right side
    215,043.68x = 35,431,181,897.97
  5. Step 5: Solve for x
    x = 35,431,181,897.97/215,043.68
  6. Step 6: Final answer
    x = 164,762.72

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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.