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Finding the Fourth Proportional to 88,915.80, 133,665.30 and 62,801.40

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Solution

The fourth proportional to 88,915.80, 133,665.30 and 62,801.40 is: 94,408.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,915.80 : 133,665.30 = 62,801.40 : x
  2. Step 2: Convert to fraction form
    88,915.80/133,665.30 = 62,801.40/x
  3. Step 3: Cross multiply
    88,915.80x = 133,665.30 × 62,801.40
  4. Step 4: Simplify right side
    88,915.80x = 8,394,367,971.42
  5. Step 5: Solve for x
    x = 8,394,367,971.42/88,915.80
  6. Step 6: Final answer
    x = 94,408.06

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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.