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Finding the Fourth Proportional to 144,696.84, 217,060.31 and 39,515.82

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Solution

The fourth proportional to 144,696.84, 217,060.31 and 39,515.82 is: 59,277.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,696.84 : 217,060.31 = 39,515.82 : x
  2. Step 2: Convert to fraction form
    144,696.84/217,060.31 = 39,515.82/x
  3. Step 3: Cross multiply
    144,696.84x = 217,060.31 × 39,515.82
  4. Step 4: Simplify right side
    144,696.84x = 8,577,315,941.53
  5. Step 5: Solve for x
    x = 8,577,315,941.53/144,696.84
  6. Step 6: Final answer
    x = 59,277.84

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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.