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Finding the Fourth Proportional to 122,920.40, 184,438.20 and 63,822.80

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Solution

The fourth proportional to 122,920.40, 184,438.20 and 63,822.80 is: 95,764.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,920.40 : 184,438.20 = 63,822.80 : x
  2. Step 2: Convert to fraction form
    122,920.40/184,438.20 = 63,822.80/x
  3. Step 3: Cross multiply
    122,920.40x = 184,438.20 × 63,822.80
  4. Step 4: Simplify right side
    122,920.40x = 11,771,362,350.96
  5. Step 5: Solve for x
    x = 11,771,362,350.96/122,920.40
  6. Step 6: Final answer
    x = 95,764.11

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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.