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Finding the Fourth Proportional to 88,876.80, 133,372.80 and 51,436.80

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Solution

The fourth proportional to 88,876.80, 133,372.80 and 51,436.80 is: 77,188.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,876.80 : 133,372.80 = 51,436.80 : x
  2. Step 2: Convert to fraction form
    88,876.80/133,372.80 = 51,436.80/x
  3. Step 3: Cross multiply
    88,876.80x = 133,372.80 × 51,436.80
  4. Step 4: Simplify right side
    88,876.80x = 6,860,270,039.04
  5. Step 5: Solve for x
    x = 6,860,270,039.04/88,876.80
  6. Step 6: Final answer
    x = 77,188.54

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1.5x scale

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.