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Finding the Fourth Proportional to 353,574.52, 487,943.81 and 200,619.19

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Solution

The fourth proportional to 353,574.52, 487,943.81 and 200,619.19 is: 276,860.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,574.52 : 487,943.81 = 200,619.19 : x
  2. Step 2: Convert to fraction form
    353,574.52/487,943.81 = 200,619.19/x
  3. Step 3: Cross multiply
    353,574.52x = 487,943.81 × 200,619.19
  4. Step 4: Simplify right side
    353,574.52x = 97,890,891,927.71
  5. Step 5: Solve for x
    x = 97,890,891,927.71/353,574.52
  6. Step 6: Final answer
    x = 276,860.71

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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.