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Finding the Fourth Proportional to 267,218.80, 368,678.04 and 154,025.84

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Solution

The fourth proportional to 267,218.80, 368,678.04 and 154,025.84 is: 212,507.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,218.80 : 368,678.04 = 154,025.84 : x
  2. Step 2: Convert to fraction form
    267,218.80/368,678.04 = 154,025.84/x
  3. Step 3: Cross multiply
    267,218.80x = 368,678.04 × 154,025.84
  4. Step 4: Simplify right side
    267,218.80x = 56,785,944,800.55
  5. Step 5: Solve for x
    x = 56,785,944,800.55/267,218.80
  6. Step 6: Final answer
    x = 212,507.30

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1.5x scale

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.