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Finding the Fourth Proportional to 238,808.15, 329,691.77 and 158,345.03

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Solution

The fourth proportional to 238,808.15, 329,691.77 and 158,345.03 is: 218,606.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,808.15 : 329,691.77 = 158,345.03 : x
  2. Step 2: Convert to fraction form
    238,808.15/329,691.77 = 158,345.03/x
  3. Step 3: Cross multiply
    238,808.15x = 329,691.77 × 158,345.03
  4. Step 4: Simplify right side
    238,808.15x = 52,205,051,983.19
  5. Step 5: Solve for x
    x = 52,205,051,983.19/238,808.15
  6. Step 6: Final answer
    x = 218,606.66

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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.