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Finding the Fourth Proportional to 67,194.80, 100,705.80 and 51,534.80

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Solution

The fourth proportional to 67,194.80, 100,705.80 and 51,534.80 is: 77,235.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,194.80 : 100,705.80 = 51,534.80 : x
  2. Step 2: Convert to fraction form
    67,194.80/100,705.80 = 51,534.80/x
  3. Step 3: Cross multiply
    67,194.80x = 100,705.80 × 51,534.80
  4. Step 4: Simplify right side
    67,194.80x = 5,189,853,261.84
  5. Step 5: Solve for x
    x = 5,189,853,261.84/67,194.80
  6. Step 6: Final answer
    x = 77,235.94

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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.