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Finding the Fourth Proportional to 238,961.76, 358,443.65 and 96,809.79

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Solution

The fourth proportional to 238,961.76, 358,443.65 and 96,809.79 is: 145,215.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,961.76 : 358,443.65 = 96,809.79 : x
  2. Step 2: Convert to fraction form
    238,961.76/358,443.65 = 96,809.79/x
  3. Step 3: Cross multiply
    238,961.76x = 358,443.65 × 96,809.79
  4. Step 4: Simplify right side
    238,961.76x = 34,700,854,483.33
  5. Step 5: Solve for x
    x = 34,700,854,483.33/238,961.76
  6. Step 6: Final answer
    x = 145,215.09

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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.