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Finding the Fourth Proportional to 122,808.60, 184,212.90 and 60,466.20

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Solution

The fourth proportional to 122,808.60, 184,212.90 and 60,466.20 is: 90,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,808.60 : 184,212.90 = 60,466.20 : x
  2. Step 2: Convert to fraction form
    122,808.60/184,212.90 = 60,466.20/x
  3. Step 3: Cross multiply
    122,808.60x = 184,212.90 × 60,466.20
  4. Step 4: Simplify right side
    122,808.60x = 11,138,654,053.98
  5. Step 5: Solve for x
    x = 11,138,654,053.98/122,808.60
  6. Step 6: Final answer
    x = 90,699.30

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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.