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Finding the Fourth Proportional to 98,334.14, 135,699.84 and 55,889.87

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Solution

The fourth proportional to 98,334.14, 135,699.84 and 55,889.87 is: 77,127.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,334.14 : 135,699.84 = 55,889.87 : x
  2. Step 2: Convert to fraction form
    98,334.14/135,699.84 = 55,889.87/x
  3. Step 3: Cross multiply
    98,334.14x = 135,699.84 × 55,889.87
  4. Step 4: Simplify right side
    98,334.14x = 7,584,245,738.12
  5. Step 5: Solve for x
    x = 7,584,245,738.12/98,334.14
  6. Step 6: Final answer
    x = 77,127.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.