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Finding the Fourth Proportional to 217,753.04, 326,463.44 and 99,341.57

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Solution

The fourth proportional to 217,753.04, 326,463.44 and 99,341.57 is: 148,936.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,753.04 : 326,463.44 = 99,341.57 : x
  2. Step 2: Convert to fraction form
    217,753.04/326,463.44 = 99,341.57/x
  3. Step 3: Cross multiply
    217,753.04x = 326,463.44 × 99,341.57
  4. Step 4: Simplify right side
    217,753.04x = 32,431,388,548.18
  5. Step 5: Solve for x
    x = 32,431,388,548.18/217,753.04
  6. Step 6: Final answer
    x = 148,936.56

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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.