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Finding the Fourth Proportional to 75,151.88, 103,709.70 and 41,618.12

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Solution

The fourth proportional to 75,151.88, 103,709.70 and 41,618.12 is: 57,433.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,151.88 : 103,709.70 = 41,618.12 : x
  2. Step 2: Convert to fraction form
    75,151.88/103,709.70 = 41,618.12/x
  3. Step 3: Cross multiply
    75,151.88x = 103,709.70 × 41,618.12
  4. Step 4: Simplify right side
    75,151.88x = 4,316,202,739.76
  5. Step 5: Solve for x
    x = 4,316,202,739.76/75,151.88
  6. Step 6: Final answer
    x = 57,433.06

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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.