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Finding the Fourth Proportional to 238,908.77, 358,335.44 and 89,154.29

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Solution

The fourth proportional to 238,908.77, 358,335.44 and 89,154.29 is: 133,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,908.77 : 358,335.44 = 89,154.29 : x
  2. Step 2: Convert to fraction form
    238,908.77/358,335.44 = 89,154.29/x
  3. Step 3: Cross multiply
    238,908.77x = 358,335.44 × 89,154.29
  4. Step 4: Simplify right side
    238,908.77x = 31,947,141,289.27
  5. Step 5: Solve for x
    x = 31,947,141,289.27/238,908.77
  6. Step 6: Final answer
    x = 133,721.09

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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.