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Finding the Fourth Proportional to 75,090.55, 103,624.95 and 41,099.07

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Solution

The fourth proportional to 75,090.55, 103,624.95 and 41,099.07 is: 56,716.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,090.55 : 103,624.95 = 41,099.07 : x
  2. Step 2: Convert to fraction form
    75,090.55/103,624.95 = 41,099.07/x
  3. Step 3: Cross multiply
    75,090.55x = 103,624.95 × 41,099.07
  4. Step 4: Simplify right side
    75,090.55x = 4,258,889,073.80
  5. Step 5: Solve for x
    x = 4,258,889,073.80/75,090.55
  6. Step 6: Final answer
    x = 56,716.71

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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.