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Finding the Fourth Proportional to 115,970.68, 160,041.25 and 67,571.56

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Solution

The fourth proportional to 115,970.68, 160,041.25 and 67,571.56 is: 93,249.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,970.68 : 160,041.25 = 67,571.56 : x
  2. Step 2: Convert to fraction form
    115,970.68/160,041.25 = 67,571.56/x
  3. Step 3: Cross multiply
    115,970.68x = 160,041.25 × 67,571.56
  4. Step 4: Simplify right side
    115,970.68x = 10,814,236,926.85
  5. Step 5: Solve for x
    x = 10,814,236,926.85/115,970.68
  6. Step 6: Final answer
    x = 93,249.75

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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.