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Finding the Fourth Proportional to 143,992.30, 215,813.34 and 101,884.52

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Solution

The fourth proportional to 143,992.30, 215,813.34 and 101,884.52 is: 152,702.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,992.30 : 215,813.34 = 101,884.52 : x
  2. Step 2: Convert to fraction form
    143,992.30/215,813.34 = 101,884.52/x
  3. Step 3: Cross multiply
    143,992.30x = 215,813.34 × 101,884.52
  4. Step 4: Simplify right side
    143,992.30x = 21,988,037,476.43
  5. Step 5: Solve for x
    x = 21,988,037,476.43/143,992.30
  6. Step 6: Final answer
    x = 152,702.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.