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Finding the Fourth Proportional to 75,357.72, 103,994.97 and 41,369.40

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Solution

The fourth proportional to 75,357.72, 103,994.97 and 41,369.40 is: 57,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,357.72 : 103,994.97 = 41,369.40 : x
  2. Step 2: Convert to fraction form
    75,357.72/103,994.97 = 41,369.40/x
  3. Step 3: Cross multiply
    75,357.72x = 103,994.97 × 41,369.40
  4. Step 4: Simplify right side
    75,357.72x = 4,302,209,511.92
  5. Step 5: Solve for x
    x = 4,302,209,511.92/75,357.72
  6. Step 6: Final answer
    x = 57,090.49

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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.