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Finding the Fourth Proportional to 77,891.55, 116,837.34 and 44,588.16

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Solution

The fourth proportional to 77,891.55, 116,837.34 and 44,588.16 is: 66,882.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,891.55 : 116,837.34 = 44,588.16 : x
  2. Step 2: Convert to fraction form
    77,891.55/116,837.34 = 44,588.16/x
  3. Step 3: Cross multiply
    77,891.55x = 116,837.34 × 44,588.16
  4. Step 4: Simplify right side
    77,891.55x = 5,209,561,202.77
  5. Step 5: Solve for x
    x = 5,209,561,202.77/77,891.55
  6. Step 6: Final answer
    x = 66,882.24

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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.