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Finding the Fourth Proportional to 124,361.71, 186,578.82 and 40,119.98

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Solution

The fourth proportional to 124,361.71, 186,578.82 and 40,119.98 is: 60,191.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,361.71 : 186,578.82 = 40,119.98 : x
  2. Step 2: Convert to fraction form
    124,361.71/186,578.82 = 40,119.98/x
  3. Step 3: Cross multiply
    124,361.71x = 186,578.82 × 40,119.98
  4. Step 4: Simplify right side
    124,361.71x = 7,485,537,593.93
  5. Step 5: Solve for x
    x = 7,485,537,593.93/124,361.71
  6. Step 6: Final answer
    x = 60,191.66

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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.