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Finding the Fourth Proportional to 67,760,594.60, 101,640,891.90 and 40,886,738.60

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Solution

The fourth proportional to 67,760,594.60, 101,640,891.90 and 40,886,738.60 is: 61,330,107.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,760,594.60 : 101,640,891.90 = 40,886,738.60 : x
  2. Step 2: Convert to fraction form
    67,760,594.60/101,640,891.90 = 40,886,738.60/x
  3. Step 3: Cross multiply
    67,760,594.60x = 101,640,891.90 × 40,886,738.60
  4. Step 4: Simplify right side
    67,760,594.60x = 4,155,764,578,186,157.50
  5. Step 5: Solve for x
    x = 4,155,764,578,186,157.50/67,760,594.60
  6. Step 6: Final answer
    x = 61,330,107.90

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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.