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Finding the Fourth Proportional to 238,612.39, 357,910.39 and 61,120.94

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Solution

The fourth proportional to 238,612.39, 357,910.39 and 61,120.94 is: 91,679.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,612.39 : 357,910.39 = 61,120.94 : x
  2. Step 2: Convert to fraction form
    238,612.39/357,910.39 = 61,120.94/x
  3. Step 3: Cross multiply
    238,612.39x = 357,910.39 × 61,120.94
  4. Step 4: Simplify right side
    238,612.39x = 21,875,819,472.57
  5. Step 5: Solve for x
    x = 21,875,819,472.57/238,612.39
  6. Step 6: Final answer
    x = 91,679.31

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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.