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Finding the Fourth Proportional to 160,694.67, 221,760.50 and 89,075.91

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Solution

The fourth proportional to 160,694.67, 221,760.50 and 89,075.91 is: 122,925.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,694.67 : 221,760.50 = 89,075.91 : x
  2. Step 2: Convert to fraction form
    160,694.67/221,760.50 = 89,075.91/x
  3. Step 3: Cross multiply
    160,694.67x = 221,760.50 × 89,075.91
  4. Step 4: Simplify right side
    160,694.67x = 19,753,517,894.18
  5. Step 5: Solve for x
    x = 19,753,517,894.18/160,694.67
  6. Step 6: Final answer
    x = 122,925.78

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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.