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Finding the Fourth Proportional to 423,886.91, 635,918.24 and 124,377.26

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Solution

The fourth proportional to 423,886.91, 635,918.24 and 124,377.26 is: 186,591.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,886.91 : 635,918.24 = 124,377.26 : x
  2. Step 2: Convert to fraction form
    423,886.91/635,918.24 = 124,377.26/x
  3. Step 3: Cross multiply
    423,886.91x = 635,918.24 × 124,377.26
  4. Step 4: Simplify right side
    423,886.91x = 79,093,765,406.57
  5. Step 5: Solve for x
    x = 79,093,765,406.57/423,886.91
  6. Step 6: Final answer
    x = 186,591.67

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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.