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Finding the Fourth Proportional to 123,132.98, 184,709.95 and 38,870.60

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Solution

The fourth proportional to 123,132.98, 184,709.95 and 38,870.60 is: 58,309.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,132.98 : 184,709.95 = 38,870.60 : x
  2. Step 2: Convert to fraction form
    123,132.98/184,709.95 = 38,870.60/x
  3. Step 3: Cross multiply
    123,132.98x = 184,709.95 × 38,870.60
  4. Step 4: Simplify right side
    123,132.98x = 7,179,786,582.47
  5. Step 5: Solve for x
    x = 7,179,786,582.47/123,132.98
  6. Step 6: Final answer
    x = 58,309.21

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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.