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Finding the Fourth Proportional to 246,861.80, 370,292.70 and 80,666.60

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Solution

The fourth proportional to 246,861.80, 370,292.70 and 80,666.60 is: 120,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,861.80 : 370,292.70 = 80,666.60 : x
  2. Step 2: Convert to fraction form
    246,861.80/370,292.70 = 80,666.60/x
  3. Step 3: Cross multiply
    246,861.80x = 370,292.70 × 80,666.60
  4. Step 4: Simplify right side
    246,861.80x = 29,870,253,113.82
  5. Step 5: Solve for x
    x = 29,870,253,113.82/246,861.80
  6. Step 6: Final answer
    x = 120,999.90

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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.