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Finding the Fourth Proportional to 99,027.93, 136,621.98 and 68,399.00

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Solution

The fourth proportional to 99,027.93, 136,621.98 and 68,399.00 is: 94,365.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,027.93 : 136,621.98 = 68,399.00 : x
  2. Step 2: Convert to fraction form
    99,027.93/136,621.98 = 68,399.00/x
  3. Step 3: Cross multiply
    99,027.93x = 136,621.98 × 68,399.00
  4. Step 4: Simplify right side
    99,027.93x = 9,344,806,126.91
  5. Step 5: Solve for x
    x = 9,344,806,126.91/99,027.93
  6. Step 6: Final answer
    x = 94,365.36

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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.