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Finding the Fourth Proportional to 125,965.23, 188,026.25 and 111,018.98

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Solution

The fourth proportional to 125,965.23, 188,026.25 and 111,018.98 is: 165,716.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,965.23 : 188,026.25 = 111,018.98 : x
  2. Step 2: Convert to fraction form
    125,965.23/188,026.25 = 111,018.98/x
  3. Step 3: Cross multiply
    125,965.23x = 188,026.25 × 111,018.98
  4. Step 4: Simplify right side
    125,965.23x = 20,874,482,488.23
  5. Step 5: Solve for x
    x = 20,874,482,488.23/125,965.23
  6. Step 6: Final answer
    x = 165,716.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.