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Finding the Fourth Proportional to 267,350.88, 368,919.68 and 154,151.76

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Solution

The fourth proportional to 267,350.88, 368,919.68 and 154,151.76 is: 212,715.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,350.88 : 368,919.68 = 154,151.76 : x
  2. Step 2: Convert to fraction form
    267,350.88/368,919.68 = 154,151.76/x
  3. Step 3: Cross multiply
    267,350.88x = 368,919.68 × 154,151.76
  4. Step 4: Simplify right side
    267,350.88x = 56,869,617,970.64
  5. Step 5: Solve for x
    x = 56,869,617,970.64/267,350.88
  6. Step 6: Final answer
    x = 212,715.28

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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.