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Finding the Fourth Proportional to 122,698.56, 184,026.96 and 39,592.56

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Solution

The fourth proportional to 122,698.56, 184,026.96 and 39,592.56 is: 59,382.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,698.56 : 184,026.96 = 39,592.56 : x
  2. Step 2: Convert to fraction form
    122,698.56/184,026.96 = 39,592.56/x
  3. Step 3: Cross multiply
    122,698.56x = 184,026.96 × 39,592.56
  4. Step 4: Simplify right side
    122,698.56x = 7,286,098,455.42
  5. Step 5: Solve for x
    x = 7,286,098,455.42/122,698.56
  6. Step 6: Final answer
    x = 59,382.10

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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.