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Finding the Fourth Proportional to 101,607.51, 140,286.83 and 63,425.19

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Solution

The fourth proportional to 101,607.51, 140,286.83 and 63,425.19 is: 87,569.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,607.51 : 140,286.83 = 63,425.19 : x
  2. Step 2: Convert to fraction form
    101,607.51/140,286.83 = 63,425.19/x
  3. Step 3: Cross multiply
    101,607.51x = 140,286.83 × 63,425.19
  4. Step 4: Simplify right side
    101,607.51x = 8,897,718,530.12
  5. Step 5: Solve for x
    x = 8,897,718,530.12/101,607.51
  6. Step 6: Final answer
    x = 87,569.50

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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.