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Finding the Fourth Proportional to 238,649.72, 358,114.17 and 88,993.40

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Solution

The fourth proportional to 238,649.72, 358,114.17 and 88,993.40 is: 133,542.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,649.72 : 358,114.17 = 88,993.40 : x
  2. Step 2: Convert to fraction form
    238,649.72/358,114.17 = 88,993.40/x
  3. Step 3: Cross multiply
    238,649.72x = 358,114.17 × 88,993.40
  4. Step 4: Simplify right side
    238,649.72x = 31,869,797,576.48
  5. Step 5: Solve for x
    x = 31,869,797,576.48/238,649.72
  6. Step 6: Final answer
    x = 133,542.15

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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.