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Finding the Fourth Proportional to 88,974.40, 133,615.20 and 47,502.40

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Solution

The fourth proportional to 88,974.40, 133,615.20 and 47,502.40 is: 71,335.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,974.40 : 133,615.20 = 47,502.40 : x
  2. Step 2: Convert to fraction form
    88,974.40/133,615.20 = 47,502.40/x
  3. Step 3: Cross multiply
    88,974.40x = 133,615.20 × 47,502.40
  4. Step 4: Simplify right side
    88,974.40x = 6,347,042,676.48
  5. Step 5: Solve for x
    x = 6,347,042,676.48/88,974.40
  6. Step 6: Final answer
    x = 71,335.61

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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.