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Finding the Fourth Proportional to 71,141.58, 106,627.14 and 33,139.62

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Solution

The fourth proportional to 71,141.58, 106,627.14 and 33,139.62 is: 49,669.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,141.58 : 106,627.14 = 33,139.62 : x
  2. Step 2: Convert to fraction form
    71,141.58/106,627.14 = 33,139.62/x
  3. Step 3: Cross multiply
    71,141.58x = 106,627.14 × 33,139.62
  4. Step 4: Simplify right side
    71,141.58x = 3,533,582,901.29
  5. Step 5: Solve for x
    x = 3,533,582,901.29/71,141.58
  6. Step 6: Final answer
    x = 49,669.73

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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.