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Finding the Fourth Proportional to 127,387.92, 191,082.21 and 33,893.67

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Solution

The fourth proportional to 127,387.92, 191,082.21 and 33,893.67 is: 50,840.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,387.92 : 191,082.21 = 33,893.67 : x
  2. Step 2: Convert to fraction form
    127,387.92/191,082.21 = 33,893.67/x
  3. Step 3: Cross multiply
    127,387.92x = 191,082.21 × 33,893.67
  4. Step 4: Simplify right side
    127,387.92x = 6,476,477,368.61
  5. Step 5: Solve for x
    x = 6,476,477,368.61/127,387.92
  6. Step 6: Final answer
    x = 50,840.59

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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.