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Finding the Fourth Proportional to 77,472.58, 106,907.42 and 43,475.26

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Solution

The fourth proportional to 77,472.58, 106,907.42 and 43,475.26 is: 59,993.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,472.58 : 106,907.42 = 43,475.26 : x
  2. Step 2: Convert to fraction form
    77,472.58/106,907.42 = 43,475.26/x
  3. Step 3: Cross multiply
    77,472.58x = 106,907.42 × 43,475.26
  4. Step 4: Simplify right side
    77,472.58x = 4,647,827,880.43
  5. Step 5: Solve for x
    x = 4,647,827,880.43/77,472.58
  6. Step 6: Final answer
    x = 59,993.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.