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Finding the Fourth Proportional to 125,156.88, 172,716.71 and 67,796.37

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Solution

The fourth proportional to 125,156.88, 172,716.71 and 67,796.37 is: 93,559.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,156.88 : 172,716.71 = 67,796.37 : x
  2. Step 2: Convert to fraction form
    125,156.88/172,716.71 = 67,796.37/x
  3. Step 3: Cross multiply
    125,156.88x = 172,716.71 × 67,796.37
  4. Step 4: Simplify right side
    125,156.88x = 11,709,565,637.36
  5. Step 5: Solve for x
    x = 11,709,565,637.36/125,156.88
  6. Step 6: Final answer
    x = 93,559.10

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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.