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Finding the Fourth Proportional to 269,021.20, 403,920.60 and 202,925.20

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Solution

The fourth proportional to 269,021.20, 403,920.60 and 202,925.20 is: 304,681.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,021.20 : 403,920.60 = 202,925.20 : x
  2. Step 2: Convert to fraction form
    269,021.20/403,920.60 = 202,925.20/x
  3. Step 3: Cross multiply
    269,021.20x = 403,920.60 × 202,925.20
  4. Step 4: Simplify right side
    269,021.20x = 81,965,668,539.12
  5. Step 5: Solve for x
    x = 81,965,668,539.12/269,021.20
  6. Step 6: Final answer
    x = 304,681.08

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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.