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Finding the Fourth Proportional to 67,166.55, 100,777.10 and 43,177.68

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Solution

The fourth proportional to 67,166.55, 100,777.10 and 43,177.68 is: 64,784.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,166.55 : 100,777.10 = 43,177.68 : x
  2. Step 2: Convert to fraction form
    67,166.55/100,777.10 = 43,177.68/x
  3. Step 3: Cross multiply
    67,166.55x = 100,777.10 × 43,177.68
  4. Step 4: Simplify right side
    67,166.55x = 4,351,321,159.24
  5. Step 5: Solve for x
    x = 4,351,321,159.24/67,166.55
  6. Step 6: Final answer
    x = 64,784.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.