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Finding the Fourth Proportional to 75,135.01, 103,662.84 and 43,299.58

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Solution

The fourth proportional to 75,135.01, 103,662.84 and 43,299.58 is: 59,739.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,135.01 : 103,662.84 = 43,299.58 : x
  2. Step 2: Convert to fraction form
    75,135.01/103,662.84 = 43,299.58/x
  3. Step 3: Cross multiply
    75,135.01x = 103,662.84 × 43,299.58
  4. Step 4: Simplify right side
    75,135.01x = 4,488,557,433.61
  5. Step 5: Solve for x
    x = 4,488,557,433.61/75,135.01
  6. Step 6: Final answer
    x = 59,739.89

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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.