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Finding the Fourth Proportional to 123,539.55, 185,339.70 and 34,791.90

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Solution

The fourth proportional to 123,539.55, 185,339.70 and 34,791.90 is: 52,196.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,539.55 : 185,339.70 = 34,791.90 : x
  2. Step 2: Convert to fraction form
    123,539.55/185,339.70 = 34,791.90/x
  3. Step 3: Cross multiply
    123,539.55x = 185,339.70 × 34,791.90
  4. Step 4: Simplify right side
    123,539.55x = 6,448,320,308.43
  5. Step 5: Solve for x
    x = 6,448,320,308.43/123,539.55
  6. Step 6: Final answer
    x = 52,196.40

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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.