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Finding the Fourth Proportional to 144,894.97, 217,319.13 and 39,689.35

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Solution

The fourth proportional to 144,894.97, 217,319.13 and 39,689.35 is: 59,527.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,894.97 : 217,319.13 = 39,689.35 : x
  2. Step 2: Convert to fraction form
    144,894.97/217,319.13 = 39,689.35/x
  3. Step 3: Cross multiply
    144,894.97x = 217,319.13 × 39,689.35
  4. Step 4: Simplify right side
    144,894.97x = 8,625,255,012.27
  5. Step 5: Solve for x
    x = 8,625,255,012.27/144,894.97
  6. Step 6: Final answer
    x = 59,527.64

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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.