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Finding the Fourth Proportional to 238,984.48, 358,476.72 and 89,236.44

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Solution

The fourth proportional to 238,984.48, 358,476.72 and 89,236.44 is: 133,854.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,984.48 : 358,476.72 = 89,236.44 : x
  2. Step 2: Convert to fraction form
    238,984.48/358,476.72 = 89,236.44/x
  3. Step 3: Cross multiply
    238,984.48x = 358,476.72 × 89,236.44
  4. Step 4: Simplify right side
    238,984.48x = 31,989,186,315.68
  5. Step 5: Solve for x
    x = 31,989,186,315.68/238,984.48
  6. Step 6: Final answer
    x = 133,854.66

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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.