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Finding the Fourth Proportional to 73,685.08, 101,685.54 and 40,151.08

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Solution

The fourth proportional to 73,685.08, 101,685.54 and 40,151.08 is: 55,408.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,685.08 : 101,685.54 = 40,151.08 : x
  2. Step 2: Convert to fraction form
    73,685.08/101,685.54 = 40,151.08/x
  3. Step 3: Cross multiply
    73,685.08x = 101,685.54 × 40,151.08
  4. Step 4: Simplify right side
    73,685.08x = 4,082,784,251.38
  5. Step 5: Solve for x
    x = 4,082,784,251.38/73,685.08
  6. Step 6: Final answer
    x = 55,408.56

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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.