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Finding the Fourth Proportional to 75,859.86, 113,212.95 and 67,452.51

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Solution

The fourth proportional to 75,859.86, 113,212.95 and 67,452.51 is: 100,665.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,859.86 : 113,212.95 = 67,452.51 : x
  2. Step 2: Convert to fraction form
    75,859.86/113,212.95 = 67,452.51/x
  3. Step 3: Cross multiply
    75,859.86x = 113,212.95 × 67,452.51
  4. Step 4: Simplify right side
    75,859.86x = 7,636,497,642.00
  5. Step 5: Solve for x
    x = 7,636,497,642.00/75,859.86
  6. Step 6: Final answer
    x = 100,665.85

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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.