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Finding the Fourth Proportional to 123,009.60, 184,557.60 and 52,910.40

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Solution

The fourth proportional to 123,009.60, 184,557.60 and 52,910.40 is: 79,384.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,009.60 : 184,557.60 = 52,910.40 : x
  2. Step 2: Convert to fraction form
    123,009.60/184,557.60 = 52,910.40/x
  3. Step 3: Cross multiply
    123,009.60x = 184,557.60 × 52,910.40
  4. Step 4: Simplify right side
    123,009.60x = 9,765,016,439.04
  5. Step 5: Solve for x
    x = 9,765,016,439.04/123,009.60
  6. Step 6: Final answer
    x = 79,384.18

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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.