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Finding the Fourth Proportional to 92,404.90, 129,629.30 and 92,404.90

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Solution

The fourth proportional to 92,404.90, 129,629.30 and 92,404.90 is: 129,629.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,404.90 : 129,629.30 = 92,404.90 : x
  2. Step 2: Convert to fraction form
    92,404.90/129,629.30 = 92,404.90/x
  3. Step 3: Cross multiply
    92,404.90x = 129,629.30 × 92,404.90
  4. Step 4: Simplify right side
    92,404.90x = 11,978,382,503.57
  5. Step 5: Solve for x
    x = 11,978,382,503.57/92,404.90
  6. Step 6: Final answer
    x = 129,629.30

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.