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Finding the Fourth Proportional to 71,507,777.44, 107,234,440.44 and 42,369,838.88

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Solution

The fourth proportional to 71,507,777.44, 107,234,440.44 and 42,369,838.88 is: 63,538,626.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,507,777.44 : 107,234,440.44 = 42,369,838.88 : x
  2. Step 2: Convert to fraction form
    71,507,777.44/107,234,440.44 = 42,369,838.88/x
  3. Step 3: Cross multiply
    71,507,777.44x = 107,234,440.44 × 42,369,838.88
  4. Step 4: Simplify right side
    71,507,777.44x = 4,543,505,963,829,756
  5. Step 5: Solve for x
    x = 4,543,505,963,829,756/71,507,777.44
  6. Step 6: Final answer
    x = 63,538,626.52

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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.