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Finding the Fourth Proportional to 267,907.05, 401,930.59 and 155,479.19

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Solution

The fourth proportional to 267,907.05, 401,930.59 and 155,479.19 is: 233,259.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,907.05 : 401,930.59 = 155,479.19 : x
  2. Step 2: Convert to fraction form
    267,907.05/401,930.59 = 155,479.19/x
  3. Step 3: Cross multiply
    267,907.05x = 401,930.59 × 155,479.19
  4. Step 4: Simplify right side
    267,907.05x = 62,491,842,569.42
  5. Step 5: Solve for x
    x = 62,491,842,569.42/267,907.05
  6. Step 6: Final answer
    x = 233,259.42

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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.