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Finding the Fourth Proportional to 267,695.79, 369,420.17 and 154,518.54

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Solution

The fourth proportional to 267,695.79, 369,420.17 and 154,518.54 is: 213,235.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,695.79 : 369,420.17 = 154,518.54 : x
  2. Step 2: Convert to fraction form
    267,695.79/369,420.17 = 154,518.54/x
  3. Step 3: Cross multiply
    267,695.79x = 369,420.17 × 154,518.54
  4. Step 4: Simplify right side
    267,695.79x = 57,082,265,314.95
  5. Step 5: Solve for x
    x = 57,082,265,314.95/267,695.79
  6. Step 6: Final answer
    x = 213,235.57

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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.