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Finding the Fourth Proportional to 70,297,680.60, 105,508,728.90 and 41,507,818.20

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Solution

The fourth proportional to 70,297,680.60, 105,508,728.90 and 41,507,818.20 is: 62,298,458.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,297,680.60 : 105,508,728.90 = 41,507,818.20 : x
  2. Step 2: Convert to fraction form
    70,297,680.60/105,508,728.90 = 41,507,818.20/x
  3. Step 3: Cross multiply
    70,297,680.60x = 105,508,728.90 × 41,507,818.20
  4. Step 4: Simplify right side
    70,297,680.60x = 4,379,437,137,694,286.50
  5. Step 5: Solve for x
    x = 4,379,437,137,694,286.50/70,297,680.60
  6. Step 6: Final answer
    x = 62,298,458.50

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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.