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Finding the Fourth Proportional to 122,688.88, 184,104.68 and 51,606.32

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Solution

The fourth proportional to 122,688.88, 184,104.68 and 51,606.32 is: 77,439.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,688.88 : 184,104.68 = 51,606.32 : x
  2. Step 2: Convert to fraction form
    122,688.88/184,104.68 = 51,606.32/x
  3. Step 3: Cross multiply
    122,688.88x = 184,104.68 × 51,606.32
  4. Step 4: Simplify right side
    122,688.88x = 9,500,965,029.58
  5. Step 5: Solve for x
    x = 9,500,965,029.58/122,688.88
  6. Step 6: Final answer
    x = 77,439.50

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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.