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Finding the Fourth Proportional to 267,607.12, 369,294.78 and 154,427.44

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Solution

The fourth proportional to 267,607.12, 369,294.78 and 154,427.44 is: 213,108.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,607.12 : 369,294.78 = 154,427.44 : x
  2. Step 2: Convert to fraction form
    267,607.12/369,294.78 = 154,427.44/x
  3. Step 3: Cross multiply
    267,607.12x = 369,294.78 × 154,427.44
  4. Step 4: Simplify right side
    267,607.12x = 57,029,247,480.76
  5. Step 5: Solve for x
    x = 57,029,247,480.76/267,607.12
  6. Step 6: Final answer
    x = 213,108.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.