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Finding the Fourth Proportional to 144,305.91, 199,013.25 and 90,595.95

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Solution

The fourth proportional to 144,305.91, 199,013.25 and 90,595.95 is: 124,941.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,305.91 : 199,013.25 = 90,595.95 : x
  2. Step 2: Convert to fraction form
    144,305.91/199,013.25 = 90,595.95/x
  3. Step 3: Cross multiply
    144,305.91x = 199,013.25 × 90,595.95
  4. Step 4: Simplify right side
    144,305.91x = 18,029,794,446.34
  5. Step 5: Solve for x
    x = 18,029,794,446.34/144,305.91
  6. Step 6: Final answer
    x = 124,941.48

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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.