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Finding the Fourth Proportional to 200,618.71, 300,967.46 and 74,260.00

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Solution

The fourth proportional to 200,618.71, 300,967.46 and 74,260.00 is: 111,404.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,618.71 : 300,967.46 = 74,260.00 : x
  2. Step 2: Convert to fraction form
    200,618.71/300,967.46 = 74,260.00/x
  3. Step 3: Cross multiply
    200,618.71x = 300,967.46 × 74,260.00
  4. Step 4: Simplify right side
    200,618.71x = 22,349,843,012.83
  5. Step 5: Solve for x
    x = 22,349,843,012.83/200,618.71
  6. Step 6: Final answer
    x = 111,404.58

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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.