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Finding the Fourth Proportional to 144,891.98, 217,314.64 and 39,686.34

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Solution

The fourth proportional to 144,891.98, 217,314.64 and 39,686.34 is: 59,523.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,891.98 : 217,314.64 = 39,686.34 : x
  2. Step 2: Convert to fraction form
    144,891.98/217,314.64 = 39,686.34/x
  3. Step 3: Cross multiply
    144,891.98x = 217,314.64 × 39,686.34
  4. Step 4: Simplify right side
    144,891.98x = 8,624,422,690.02
  5. Step 5: Solve for x
    x = 8,624,422,690.02/144,891.98
  6. Step 6: Final answer
    x = 59,523.12

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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.