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Finding the Fourth Proportional to 86,944.80, 130,436.10 and 49,522.80

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Solution

The fourth proportional to 86,944.80, 130,436.10 and 49,522.80 is: 74,294.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,944.80 : 130,436.10 = 49,522.80 : x
  2. Step 2: Convert to fraction form
    86,944.80/130,436.10 = 49,522.80/x
  3. Step 3: Cross multiply
    86,944.80x = 130,436.10 × 49,522.80
  4. Step 4: Simplify right side
    86,944.80x = 6,459,560,893.08
  5. Step 5: Solve for x
    x = 6,459,560,893.08/86,944.80
  6. Step 6: Final answer
    x = 74,294.97

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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.