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Finding the Fourth Proportional to 322,744.95, 445,356.87 and 186,751.83

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Solution

The fourth proportional to 322,744.95, 445,356.87 and 186,751.83 is: 257,699.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,744.95 : 445,356.87 = 186,751.83 : x
  2. Step 2: Convert to fraction form
    322,744.95/445,356.87 = 186,751.83/x
  3. Step 3: Cross multiply
    322,744.95x = 445,356.87 × 186,751.83
  4. Step 4: Simplify right side
    322,744.95x = 83,171,210,475.57
  5. Step 5: Solve for x
    x = 83,171,210,475.57/322,744.95
  6. Step 6: Final answer
    x = 257,699.49

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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.