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Finding the Fourth Proportional to 267,309.76, 368,873.76 and 154,125.76

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Solution

The fourth proportional to 267,309.76, 368,873.76 and 154,125.76 is: 212,685.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,309.76 : 368,873.76 = 154,125.76 : x
  2. Step 2: Convert to fraction form
    267,309.76/368,873.76 = 154,125.76/x
  3. Step 3: Cross multiply
    267,309.76x = 368,873.76 × 154,125.76
  4. Step 4: Simplify right side
    267,309.76x = 56,852,948,604.06
  5. Step 5: Solve for x
    x = 56,852,948,604.06/267,309.76
  6. Step 6: Final answer
    x = 212,685.64

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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.