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Finding the Fourth Proportional to 122,199.30, 183,165.30 and 43,272.90

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Solution

The fourth proportional to 122,199.30, 183,165.30 and 43,272.90 is: 64,862.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,199.30 : 183,165.30 = 43,272.90 : x
  2. Step 2: Convert to fraction form
    122,199.30/183,165.30 = 43,272.90/x
  3. Step 3: Cross multiply
    122,199.30x = 183,165.30 × 43,272.90
  4. Step 4: Simplify right side
    122,199.30x = 7,926,093,710.37
  5. Step 5: Solve for x
    x = 7,926,093,710.37/122,199.30
  6. Step 6: Final answer
    x = 64,862.02

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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.