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Finding the Fourth Proportional to 125,194.77, 172,763.10 and 68,604.93

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Solution

The fourth proportional to 125,194.77, 172,763.10 and 68,604.93 is: 94,671.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,194.77 : 172,763.10 = 68,604.93 : x
  2. Step 2: Convert to fraction form
    125,194.77/172,763.10 = 68,604.93/x
  3. Step 3: Cross multiply
    125,194.77x = 172,763.10 × 68,604.93
  4. Step 4: Simplify right side
    125,194.77x = 11,852,400,382.08
  5. Step 5: Solve for x
    x = 11,852,400,382.08/125,194.77
  6. Step 6: Final answer
    x = 94,671.69

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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.