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Finding the Fourth Proportional to 83,171.93, 124,534.34 and 63,356.09

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Solution

The fourth proportional to 83,171.93, 124,534.34 and 63,356.09 is: 94,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,171.93 : 124,534.34 = 63,356.09 : x
  2. Step 2: Convert to fraction form
    83,171.93/124,534.34 = 63,356.09/x
  3. Step 3: Cross multiply
    83,171.93x = 124,534.34 × 63,356.09
  4. Step 4: Simplify right side
    83,171.93x = 7,890,008,536.35
  5. Step 5: Solve for x
    x = 7,890,008,536.35/83,171.93
  6. Step 6: Final answer
    x = 94,863.84

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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.