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Finding the Fourth Proportional to 75,131.77, 103,681.60 and 41,597.77

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Solution

The fourth proportional to 75,131.77, 103,681.60 and 41,597.77 is: 57,404.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,131.77 : 103,681.60 = 41,597.77 : x
  2. Step 2: Convert to fraction form
    75,131.77/103,681.60 = 41,597.77/x
  3. Step 3: Cross multiply
    75,131.77x = 103,681.60 × 41,597.77
  4. Step 4: Simplify right side
    75,131.77x = 4,312,923,350.03
  5. Step 5: Solve for x
    x = 4,312,923,350.03/75,131.77
  6. Step 6: Final answer
    x = 57,404.79

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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.