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Finding the Fourth Proportional to 122,843.60, 184,265.40 and 83,477.60

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Solution

The fourth proportional to 122,843.60, 184,265.40 and 83,477.60 is: 125,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,843.60 : 184,265.40 = 83,477.60 : x
  2. Step 2: Convert to fraction form
    122,843.60/184,265.40 = 83,477.60/x
  3. Step 3: Cross multiply
    122,843.60x = 184,265.40 × 83,477.60
  4. Step 4: Simplify right side
    122,843.60x = 15,382,033,355.04
  5. Step 5: Solve for x
    x = 15,382,033,355.04/122,843.60
  6. Step 6: Final answer
    x = 125,216.40

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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.