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Finding the Fourth Proportional to 77,082.80, 115,647.48 and 36,587.39

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Solution

The fourth proportional to 77,082.80, 115,647.48 and 36,587.39 is: 54,892.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,082.80 : 115,647.48 = 36,587.39 : x
  2. Step 2: Convert to fraction form
    77,082.80/115,647.48 = 36,587.39/x
  3. Step 3: Cross multiply
    77,082.80x = 115,647.48 × 36,587.39
  4. Step 4: Simplify right side
    77,082.80x = 4,231,238,875.04
  5. Step 5: Solve for x
    x = 4,231,238,875.04/77,082.80
  6. Step 6: Final answer
    x = 54,892.13

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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.