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Finding the Fourth Proportional to 267,062.52, 368,545.50 and 153,885

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Solution

The fourth proportional to 267,062.52, 368,545.50 and 153,885 is: 212,360.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,062.52 : 368,545.50 = 153,885 : x
  2. Step 2: Convert to fraction form
    267,062.52/368,545.50 = 153,885/x
  3. Step 3: Cross multiply
    267,062.52x = 368,545.50 × 153,885
  4. Step 4: Simplify right side
    267,062.52x = 56,713,624,267.50
  5. Step 5: Solve for x
    x = 56,713,624,267.50/267,062.52
  6. Step 6: Final answer
    x = 212,360.85

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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.