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Finding the Fourth Proportional to 75,136.25, 103,691.27 and 41,602.25

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Solution

The fourth proportional to 75,136.25, 103,691.27 and 41,602.25 is: 57,412.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,136.25 : 103,691.27 = 41,602.25 : x
  2. Step 2: Convert to fraction form
    75,136.25/103,691.27 = 41,602.25/x
  3. Step 3: Cross multiply
    75,136.25x = 103,691.27 × 41,602.25
  4. Step 4: Simplify right side
    75,136.25x = 4,313,790,137.36
  5. Step 5: Solve for x
    x = 4,313,790,137.36/75,136.25
  6. Step 6: Final answer
    x = 57,412.90

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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.