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Finding the Fourth Proportional to 125,691.94, 188,497.84 and 41,436.40

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Solution

The fourth proportional to 125,691.94, 188,497.84 and 41,436.40 is: 62,141.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,691.94 : 188,497.84 = 41,436.40 : x
  2. Step 2: Convert to fraction form
    125,691.94/188,497.84 = 41,436.40/x
  3. Step 3: Cross multiply
    125,691.94x = 188,497.84 × 41,436.40
  4. Step 4: Simplify right side
    125,691.94x = 7,810,671,897.38
  5. Step 5: Solve for x
    x = 7,810,671,897.38/125,691.94
  6. Step 6: Final answer
    x = 62,141.39

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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.