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Finding the Fourth Proportional to 107,043.88, 159,914.75 and 69,296.44

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Solution

The fourth proportional to 107,043.88, 159,914.75 and 69,296.44 is: 103,523.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,043.88 : 159,914.75 = 69,296.44 : x
  2. Step 2: Convert to fraction form
    107,043.88/159,914.75 = 69,296.44/x
  3. Step 3: Cross multiply
    107,043.88x = 159,914.75 × 69,296.44
  4. Step 4: Simplify right side
    107,043.88x = 11,081,522,878.49
  5. Step 5: Solve for x
    x = 11,081,522,878.49/107,043.88
  6. Step 6: Final answer
    x = 103,523.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.