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Finding the Fourth Proportional to 171,603.39, 236,828.30 and 103,654.11

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Solution

The fourth proportional to 171,603.39, 236,828.30 and 103,654.11 is: 143,052.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,603.39 : 236,828.30 = 103,654.11 : x
  2. Step 2: Convert to fraction form
    171,603.39/236,828.30 = 103,654.11/x
  3. Step 3: Cross multiply
    171,603.39x = 236,828.30 × 103,654.11
  4. Step 4: Simplify right side
    171,603.39x = 24,548,226,659.31
  5. Step 5: Solve for x
    x = 24,548,226,659.31/171,603.39
  6. Step 6: Final answer
    x = 143,052.11

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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.