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Finding the Fourth Proportional to 363,919.20, 545,943.62 and 124,019.81

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Solution

The fourth proportional to 363,919.20, 545,943.62 and 124,019.81 is: 186,051.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,919.20 : 545,943.62 = 124,019.81 : x
  2. Step 2: Convert to fraction form
    363,919.20/545,943.62 = 124,019.81/x
  3. Step 3: Cross multiply
    363,919.20x = 545,943.62 × 124,019.81
  4. Step 4: Simplify right side
    363,919.20x = 67,707,823,301.93
  5. Step 5: Solve for x
    x = 67,707,823,301.93/363,919.20
  6. Step 6: Final answer
    x = 186,051.80

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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.