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Finding the Fourth Proportional to 202,891.20, 304,336.80 and 62,649.60

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Solution

The fourth proportional to 202,891.20, 304,336.80 and 62,649.60 is: 93,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,891.20 : 304,336.80 = 62,649.60 : x
  2. Step 2: Convert to fraction form
    202,891.20/304,336.80 = 62,649.60/x
  3. Step 3: Cross multiply
    202,891.20x = 304,336.80 × 62,649.60
  4. Step 4: Simplify right side
    202,891.20x = 19,066,578,785.28
  5. Step 5: Solve for x
    x = 19,066,578,785.28/202,891.20
  6. Step 6: Final answer
    x = 93,974.40

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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.