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Finding the Fourth Proportional to 122,808.80, 184,213.20 and 43,925.60

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Solution

The fourth proportional to 122,808.80, 184,213.20 and 43,925.60 is: 65,888.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,808.80 : 184,213.20 = 43,925.60 : x
  2. Step 2: Convert to fraction form
    122,808.80/184,213.20 = 43,925.60/x
  3. Step 3: Cross multiply
    122,808.80x = 184,213.20 × 43,925.60
  4. Step 4: Simplify right side
    122,808.80x = 8,091,675,337.92
  5. Step 5: Solve for x
    x = 8,091,675,337.92/122,808.80
  6. Step 6: Final answer
    x = 65,888.40

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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.