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Finding the Fourth Proportional to 151,394.01, 208,933.07 and 84,326.01

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Solution

The fourth proportional to 151,394.01, 208,933.07 and 84,326.01 is: 116,375.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,394.01 : 208,933.07 = 84,326.01 : x
  2. Step 2: Convert to fraction form
    151,394.01/208,933.07 = 84,326.01/x
  3. Step 3: Cross multiply
    151,394.01x = 208,933.07 × 84,326.01
  4. Step 4: Simplify right side
    151,394.01x = 17,618,491,728.52
  5. Step 5: Solve for x
    x = 17,618,491,728.52/151,394.01
  6. Step 6: Final answer
    x = 116,375.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.