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Finding the Fourth Proportional to 238,931.44, 358,147.04 and 89,111.44

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Solution

The fourth proportional to 238,931.44, 358,147.04 and 89,111.44 is: 133,573.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,931.44 : 358,147.04 = 89,111.44 : x
  2. Step 2: Convert to fraction form
    238,931.44/358,147.04 = 89,111.44/x
  3. Step 3: Cross multiply
    238,931.44x = 358,147.04 × 89,111.44
  4. Step 4: Simplify right side
    238,931.44x = 31,914,998,466.14
  5. Step 5: Solve for x
    x = 31,914,998,466.14/238,931.44
  6. Step 6: Final answer
    x = 133,573.88

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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.