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Finding the Fourth Proportional to 101,462.50, 140,074.55 and 61,186.46

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Solution

The fourth proportional to 101,462.50, 140,074.55 and 61,186.46 is: 84,471.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,462.50 : 140,074.55 = 61,186.46 : x
  2. Step 2: Convert to fraction form
    101,462.50/140,074.55 = 61,186.46/x
  3. Step 3: Cross multiply
    101,462.50x = 140,074.55 × 61,186.46
  4. Step 4: Simplify right side
    101,462.50x = 8,570,665,850.59
  5. Step 5: Solve for x
    x = 8,570,665,850.59/101,462.50
  6. Step 6: Final answer
    x = 84,471.27

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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.