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Finding the Fourth Proportional to 99,059.88, 136,626.34 and 68,844.84

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Solution

The fourth proportional to 99,059.88, 136,626.34 and 68,844.84 is: 94,952.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,059.88 : 136,626.34 = 68,844.84 : x
  2. Step 2: Convert to fraction form
    99,059.88/136,626.34 = 68,844.84/x
  3. Step 3: Cross multiply
    99,059.88x = 136,626.34 × 68,844.84
  4. Step 4: Simplify right side
    99,059.88x = 9,406,018,517.09
  5. Step 5: Solve for x
    x = 9,406,018,517.09/99,059.88
  6. Step 6: Final answer
    x = 94,952.86

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1.5x scale

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.