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Finding the Fourth Proportional to 341,781.64, 512,680.67 and 105,126.37

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Solution

The fourth proportional to 341,781.64, 512,680.67 and 105,126.37 is: 157,692.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,781.64 : 512,680.67 = 105,126.37 : x
  2. Step 2: Convert to fraction form
    341,781.64/512,680.67 = 105,126.37/x
  3. Step 3: Cross multiply
    341,781.64x = 512,680.67 × 105,126.37
  4. Step 4: Simplify right side
    341,781.64x = 53,896,257,806.27
  5. Step 5: Solve for x
    x = 53,896,257,806.27/341,781.64
  6. Step 6: Final answer
    x = 157,692.08

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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.