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Finding the Fourth Proportional to 618,145.77, 927,351.86 and 191,673.02

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Solution

The fourth proportional to 618,145.77, 927,351.86 and 191,673.02 is: 287,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,145.77 : 927,351.86 = 191,673.02 : x
  2. Step 2: Convert to fraction form
    618,145.77/927,351.86 = 191,673.02/x
  3. Step 3: Cross multiply
    618,145.77x = 927,351.86 × 191,673.02
  4. Step 4: Simplify right side
    618,145.77x = 177,748,327,237.43
  5. Step 5: Solve for x
    x = 177,748,327,237.43/618,145.77
  6. Step 6: Final answer
    x = 287,550.83

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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.