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Finding the Fourth Proportional to 109,999.62, 151,777.80 and 66,967.56

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Solution

The fourth proportional to 109,999.62, 151,777.80 and 66,967.56 is: 92,402.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,999.62 : 151,777.80 = 66,967.56 : x
  2. Step 2: Convert to fraction form
    109,999.62/151,777.80 = 66,967.56/x
  3. Step 3: Cross multiply
    109,999.62x = 151,777.80 × 66,967.56
  4. Step 4: Simplify right side
    109,999.62x = 10,164,188,928.17
  5. Step 5: Solve for x
    x = 10,164,188,928.17/109,999.62
  6. Step 6: Final answer
    x = 92,402.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.