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Finding the Fourth Proportional to 144,633.84, 216,634.88 and 60,137.78

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Solution

The fourth proportional to 144,633.84, 216,634.88 and 60,137.78 is: 90,075.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,633.84 : 216,634.88 = 60,137.78 : x
  2. Step 2: Convert to fraction form
    144,633.84/216,634.88 = 60,137.78/x
  3. Step 3: Cross multiply
    144,633.84x = 216,634.88 × 60,137.78
  4. Step 4: Simplify right side
    144,633.84x = 13,027,940,753.77
  5. Step 5: Solve for x
    x = 13,027,940,753.77/144,633.84
  6. Step 6: Final answer
    x = 90,075.33

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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.