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Finding the Fourth Proportional to 267,710.49, 401,436.56 and 155,418.98

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Solution

The fourth proportional to 267,710.49, 401,436.56 and 155,418.98 is: 233,053.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,710.49 : 401,436.56 = 155,418.98 : x
  2. Step 2: Convert to fraction form
    267,710.49/401,436.56 = 155,418.98/x
  3. Step 3: Cross multiply
    267,710.49x = 401,436.56 × 155,418.98
  4. Step 4: Simplify right side
    267,710.49x = 62,390,857,905.63
  5. Step 5: Solve for x
    x = 62,390,857,905.63/267,710.49
  6. Step 6: Final answer
    x = 233,053.47

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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.