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Finding the Fourth Proportional to 79,058.57, 118,605.33 and 36,915.68

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Solution

The fourth proportional to 79,058.57, 118,605.33 and 36,915.68 is: 55,381.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,058.57 : 118,605.33 = 36,915.68 : x
  2. Step 2: Convert to fraction form
    79,058.57/118,605.33 = 36,915.68/x
  3. Step 3: Cross multiply
    79,058.57x = 118,605.33 × 36,915.68
  4. Step 4: Simplify right side
    79,058.57x = 4,378,395,815.55
  5. Step 5: Solve for x
    x = 4,378,395,815.55/79,058.57
  6. Step 6: Final answer
    x = 55,381.68

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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.