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Finding the Fourth Proportional to 123,078.08, 184,617.12 and 38,844.80

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Solution

The fourth proportional to 123,078.08, 184,617.12 and 38,844.80 is: 58,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,078.08 : 184,617.12 = 38,844.80 : x
  2. Step 2: Convert to fraction form
    123,078.08/184,617.12 = 38,844.80/x
  3. Step 3: Cross multiply
    123,078.08x = 184,617.12 × 38,844.80
  4. Step 4: Simplify right side
    123,078.08x = 7,171,415,017.87
  5. Step 5: Solve for x
    x = 7,171,415,017.87/123,078.08
  6. Step 6: Final answer
    x = 58,267.20

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1.5x scale

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.