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Finding the Fourth Proportional to 65,629.90, 92,144.30 and 65,629.90

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Solution

The fourth proportional to 65,629.90, 92,144.30 and 65,629.90 is: 92,144.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,629.90 : 92,144.30 = 65,629.90 : x
  2. Step 2: Convert to fraction form
    65,629.90/92,144.30 = 65,629.90/x
  3. Step 3: Cross multiply
    65,629.90x = 92,144.30 × 65,629.90
  4. Step 4: Simplify right side
    65,629.90x = 6,047,421,194.57
  5. Step 5: Solve for x
    x = 6,047,421,194.57/65,629.90
  6. Step 6: Final answer
    x = 92,144.30

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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.