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Finding the Fourth Proportional to 125,067.36, 172,593 and 68,482.32

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Solution

The fourth proportional to 125,067.36, 172,593 and 68,482.32 is: 94,505.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,067.36 : 172,593 = 68,482.32 : x
  2. Step 2: Convert to fraction form
    125,067.36/172,593 = 68,482.32/x
  3. Step 3: Cross multiply
    125,067.36x = 172,593 × 68,482.32
  4. Step 4: Simplify right side
    125,067.36x = 11,819,569,055.76
  5. Step 5: Solve for x
    x = 11,819,569,055.76/125,067.36
  6. Step 6: Final answer
    x = 94,505.63

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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.