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Finding the Fourth Proportional to 127,697.53, 191,611.92 and 56,668.84

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Solution

The fourth proportional to 127,697.53, 191,611.92 and 56,668.84 is: 85,032.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,697.53 : 191,611.92 = 56,668.84 : x
  2. Step 2: Convert to fraction form
    127,697.53/191,611.92 = 56,668.84/x
  3. Step 3: Cross multiply
    127,697.53x = 191,611.92 × 56,668.84
  4. Step 4: Simplify right side
    127,697.53x = 10,858,425,236.57
  5. Step 5: Solve for x
    x = 10,858,425,236.57/127,697.53
  6. Step 6: Final answer
    x = 85,032.38

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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.