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Finding the Fourth Proportional to 73,817,611.20, 110,726,416.80 and 30,770,890.20

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Solution

The fourth proportional to 73,817,611.20, 110,726,416.80 and 30,770,890.20 is: 46,156,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,817,611.20 : 110,726,416.80 = 30,770,890.20 : x
  2. Step 2: Convert to fraction form
    73,817,611.20/110,726,416.80 = 30,770,890.20/x
  3. Step 3: Cross multiply
    73,817,611.20x = 110,726,416.80 × 30,770,890.20
  4. Step 4: Simplify right side
    73,817,611.20x = 3,407,150,413,592,235
  5. Step 5: Solve for x
    x = 3,407,150,413,592,235/73,817,611.20
  6. Step 6: Final answer
    x = 46,156,335.30

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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.