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Finding the Fourth Proportional to 267,967.81, 401,426.21 and 155,411.57

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Solution

The fourth proportional to 267,967.81, 401,426.21 and 155,411.57 is: 232,812.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,967.81 : 401,426.21 = 155,411.57 : x
  2. Step 2: Convert to fraction form
    267,967.81/401,426.21 = 155,411.57/x
  3. Step 3: Cross multiply
    267,967.81x = 401,426.21 × 155,411.57
  4. Step 4: Simplify right side
    267,967.81x = 62,386,278,927.34
  5. Step 5: Solve for x
    x = 62,386,278,927.34/267,967.81
  6. Step 6: Final answer
    x = 232,812.59

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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.