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Finding the Fourth Proportional to 122,872.66, 184,333.59 and 38,654.01

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Solution

The fourth proportional to 122,872.66, 184,333.59 and 38,654.01 is: 57,988.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,872.66 : 184,333.59 = 38,654.01 : x
  2. Step 2: Convert to fraction form
    122,872.66/184,333.59 = 38,654.01/x
  3. Step 3: Cross multiply
    122,872.66x = 184,333.59 × 38,654.01
  4. Step 4: Simplify right side
    122,872.66x = 7,125,232,431.20
  5. Step 5: Solve for x
    x = 7,125,232,431.20/122,872.66
  6. Step 6: Final answer
    x = 57,988.75

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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.