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Finding the Fourth Proportional to 125,671.78, 188,641.95 and 50,840.83

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Solution

The fourth proportional to 125,671.78, 188,641.95 and 50,840.83 is: 76,315.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,671.78 : 188,641.95 = 50,840.83 : x
  2. Step 2: Convert to fraction form
    125,671.78/188,641.95 = 50,840.83/x
  3. Step 3: Cross multiply
    125,671.78x = 188,641.95 × 50,840.83
  4. Step 4: Simplify right side
    125,671.78x = 9,590,713,310.82
  5. Step 5: Solve for x
    x = 9,590,713,310.82/125,671.78
  6. Step 6: Final answer
    x = 76,315.57

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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.