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Finding the Fourth Proportional to 122,957.80, 184,436.70 and 60,620.20

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Solution

The fourth proportional to 122,957.80, 184,436.70 and 60,620.20 is: 90,930.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,957.80 : 184,436.70 = 60,620.20 : x
  2. Step 2: Convert to fraction form
    122,957.80/184,436.70 = 60,620.20/x
  3. Step 3: Cross multiply
    122,957.80x = 184,436.70 × 60,620.20
  4. Step 4: Simplify right side
    122,957.80x = 11,180,589,641.34
  5. Step 5: Solve for x
    x = 11,180,589,641.34/122,957.80
  6. Step 6: Final answer
    x = 90,930.30

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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.