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Finding the Fourth Proportional to 130,912.71, 196,354.36 and 36,156.37

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Solution

The fourth proportional to 130,912.71, 196,354.36 and 36,156.37 is: 54,230.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,912.71 : 196,354.36 = 36,156.37 : x
  2. Step 2: Convert to fraction form
    130,912.71/196,354.36 = 36,156.37/x
  3. Step 3: Cross multiply
    130,912.71x = 196,354.36 × 36,156.37
  4. Step 4: Simplify right side
    130,912.71x = 7,099,460,891.27
  5. Step 5: Solve for x
    x = 7,099,460,891.27/130,912.71
  6. Step 6: Final answer
    x = 54,230.49

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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.