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Finding the Fourth Proportional to 238,852.68, 358,421.78 and 89,198.08

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Solution

The fourth proportional to 238,852.68, 358,421.78 and 89,198.08 is: 133,850.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,852.68 : 358,421.78 = 89,198.08 : x
  2. Step 2: Convert to fraction form
    238,852.68/358,421.78 = 89,198.08/x
  3. Step 3: Cross multiply
    238,852.68x = 358,421.78 × 89,198.08
  4. Step 4: Simplify right side
    238,852.68x = 31,970,534,606.18
  5. Step 5: Solve for x
    x = 31,970,534,606.18/238,852.68
  6. Step 6: Final answer
    x = 133,850.43

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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.