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Finding the Fourth Proportional to 172,960.58, 259,329.06 and 67,790.18

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Solution

The fourth proportional to 172,960.58, 259,329.06 and 67,790.18 is: 101,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,960.58 : 259,329.06 = 67,790.18 : x
  2. Step 2: Convert to fraction form
    172,960.58/259,329.06 = 67,790.18/x
  3. Step 3: Cross multiply
    172,960.58x = 259,329.06 × 67,790.18
  4. Step 4: Simplify right side
    172,960.58x = 17,579,962,359.99
  5. Step 5: Solve for x
    x = 17,579,962,359.99/172,960.58
  6. Step 6: Final answer
    x = 101,641.44

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1.5x scale

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.