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Finding the Fourth Proportional to 70,318,989.48, 105,508,796.04 and 37,964,467.74

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Solution

The fourth proportional to 70,318,989.48, 105,508,796.04 and 37,964,467.74 is: 56,963,066.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,318,989.48 : 105,508,796.04 = 37,964,467.74 : x
  2. Step 2: Convert to fraction form
    70,318,989.48/105,508,796.04 = 37,964,467.74/x
  3. Step 3: Cross multiply
    70,318,989.48x = 105,508,796.04 × 37,964,467.74
  4. Step 4: Simplify right side
    70,318,989.48x = 4,005,585,283,546,820
  5. Step 5: Solve for x
    x = 4,005,585,283,546,820/70,318,989.48
  6. Step 6: Final answer
    x = 56,963,066.64

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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.