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Finding the Fourth Proportional to 75,860.86, 113,214.44 and 67,453.51

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Solution

The fourth proportional to 75,860.86, 113,214.44 and 67,453.51 is: 100,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,860.86 : 113,214.44 = 67,453.51 : x
  2. Step 2: Convert to fraction form
    75,860.86/113,214.44 = 67,453.51/x
  3. Step 3: Cross multiply
    75,860.86x = 113,214.44 × 67,453.51
  4. Step 4: Simplify right side
    75,860.86x = 7,636,711,360.68
  5. Step 5: Solve for x
    x = 7,636,711,360.68/75,860.86
  6. Step 6: Final answer
    x = 100,667.34

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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.