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Finding the Fourth Proportional to 267,061.52, 368,544.12 and 153,884

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Solution

The fourth proportional to 267,061.52, 368,544.12 and 153,884 is: 212,359.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,061.52 : 368,544.12 = 153,884 : x
  2. Step 2: Convert to fraction form
    267,061.52/368,544.12 = 153,884/x
  3. Step 3: Cross multiply
    267,061.52x = 368,544.12 × 153,884
  4. Step 4: Simplify right side
    267,061.52x = 56,713,043,362.08
  5. Step 5: Solve for x
    x = 56,713,043,362.08/267,061.52
  6. Step 6: Final answer
    x = 212,359.47

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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.