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Finding the Fourth Proportional to 312,575.13, 468,927.48 and 125,601.21

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Solution

The fourth proportional to 312,575.13, 468,927.48 and 125,601.21 is: 188,427.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,575.13 : 468,927.48 = 125,601.21 : x
  2. Step 2: Convert to fraction form
    312,575.13/468,927.48 = 125,601.21/x
  3. Step 3: Cross multiply
    312,575.13x = 468,927.48 × 125,601.21
  4. Step 4: Simplify right side
    312,575.13x = 58,897,858,890.25
  5. Step 5: Solve for x
    x = 58,897,858,890.25/312,575.13
  6. Step 6: Final answer
    x = 188,427.85

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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.