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Finding the Fourth Proportional to 122,969.43, 184,473.54 and 43,029.72

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Solution

The fourth proportional to 122,969.43, 184,473.54 and 43,029.72 is: 64,551.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,969.43 : 184,473.54 = 43,029.72 : x
  2. Step 2: Convert to fraction form
    122,969.43/184,473.54 = 43,029.72/x
  3. Step 3: Cross multiply
    122,969.43x = 184,473.54 × 43,029.72
  4. Step 4: Simplify right side
    122,969.43x = 7,937,844,773.61
  5. Step 5: Solve for x
    x = 7,937,844,773.61/122,969.43
  6. Step 6: Final answer
    x = 64,551.37

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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.