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Finding the Fourth Proportional to 238,607.60, 329,279.16 and 136,634.60

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Solution

The fourth proportional to 238,607.60, 329,279.16 and 136,634.60 is: 188,556.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,607.60 : 329,279.16 = 136,634.60 : x
  2. Step 2: Convert to fraction form
    238,607.60/329,279.16 = 136,634.60/x
  3. Step 3: Cross multiply
    238,607.60x = 329,279.16 × 136,634.60
  4. Step 4: Simplify right side
    238,607.60x = 44,990,926,314.94
  5. Step 5: Solve for x
    x = 44,990,926,314.94/238,607.60
  6. Step 6: Final answer
    x = 188,556.13

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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.