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Finding the Fourth Proportional to 123,023.30, 184,525.35 and 48,128.90

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Solution

The fourth proportional to 123,023.30, 184,525.35 and 48,128.90 is: 72,189.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,023.30 : 184,525.35 = 48,128.90 : x
  2. Step 2: Convert to fraction form
    123,023.30/184,525.35 = 48,128.90/x
  3. Step 3: Cross multiply
    123,023.30x = 184,525.35 × 48,128.90
  4. Step 4: Simplify right side
    123,023.30x = 8,881,002,117.62
  5. Step 5: Solve for x
    x = 8,881,002,117.62/123,023.30
  6. Step 6: Final answer
    x = 72,189.59

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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.