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Finding the Fourth Proportional to 122,720.52, 183,930.12 and 63,522.48

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Solution

The fourth proportional to 122,720.52, 183,930.12 and 63,522.48 is: 95,205.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,720.52 : 183,930.12 = 63,522.48 : x
  2. Step 2: Convert to fraction form
    122,720.52/183,930.12 = 63,522.48/x
  3. Step 3: Cross multiply
    122,720.52x = 183,930.12 × 63,522.48
  4. Step 4: Simplify right side
    122,720.52x = 11,683,697,369.10
  5. Step 5: Solve for x
    x = 11,683,697,369.10/122,720.52
  6. Step 6: Final answer
    x = 95,205.74

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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.