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Finding the Fourth Proportional to 75,274, 103,894.32 and 45,066.06

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Solution

The fourth proportional to 75,274, 103,894.32 and 45,066.06 is: 62,200.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,274 : 103,894.32 = 45,066.06 : x
  2. Step 2: Convert to fraction form
    75,274/103,894.32 = 45,066.06/x
  3. Step 3: Cross multiply
    75,274x = 103,894.32 × 45,066.06
  4. Step 4: Simplify right side
    75,274x = 4,682,107,658.78
  5. Step 5: Solve for x
    x = 4,682,107,658.78/75,274
  6. Step 6: Final answer
    x = 62,200.86

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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.