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Finding the Fourth Proportional to 122,886.98, 184,330.30 and 38,654.54

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Solution

The fourth proportional to 122,886.98, 184,330.30 and 38,654.54 is: 57,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,886.98 : 184,330.30 = 38,654.54 : x
  2. Step 2: Convert to fraction form
    122,886.98/184,330.30 = 38,654.54/x
  3. Step 3: Cross multiply
    122,886.98x = 184,330.30 × 38,654.54
  4. Step 4: Simplify right side
    122,886.98x = 7,125,202,954.56
  5. Step 5: Solve for x
    x = 7,125,202,954.56/122,886.98
  6. Step 6: Final answer
    x = 57,981.76

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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.