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Finding the Fourth Proportional to 69,729.25, 104,973.31 and 63,529.11

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Solution

The fourth proportional to 69,729.25, 104,973.31 and 63,529.11 is: 95,639.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,729.25 : 104,973.31 = 63,529.11 : x
  2. Step 2: Convert to fraction form
    69,729.25/104,973.31 = 63,529.11/x
  3. Step 3: Cross multiply
    69,729.25x = 104,973.31 × 63,529.11
  4. Step 4: Simplify right side
    69,729.25x = 6,668,860,958.05
  5. Step 5: Solve for x
    x = 6,668,860,958.05/69,729.25
  6. Step 6: Final answer
    x = 95,639.36

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.