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Finding the Fourth Proportional to 267,253.20, 368,840.52 and 154,080

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Solution

The fourth proportional to 267,253.20, 368,840.52 and 154,080 is: 212,648.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,253.20 : 368,840.52 = 154,080 : x
  2. Step 2: Convert to fraction form
    267,253.20/368,840.52 = 154,080/x
  3. Step 3: Cross multiply
    267,253.20x = 368,840.52 × 154,080
  4. Step 4: Simplify right side
    267,253.20x = 56,830,947,321.60
  5. Step 5: Solve for x
    x = 56,830,947,321.60/267,253.20
  6. Step 6: Final answer
    x = 212,648.33

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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.