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Finding the Fourth Proportional to 69,121.02, 103,710.69 and 63,604.32

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Solution

The fourth proportional to 69,121.02, 103,710.69 and 63,604.32 is: 95,433.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.02 : 103,710.69 = 63,604.32 : x
  2. Step 2: Convert to fraction form
    69,121.02/103,710.69 = 63,604.32/x
  3. Step 3: Cross multiply
    69,121.02x = 103,710.69 × 63,604.32
  4. Step 4: Simplify right side
    69,121.02x = 6,596,447,914.18
  5. Step 5: Solve for x
    x = 6,596,447,914.18/69,121.02
  6. Step 6: Final answer
    x = 95,433.31

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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.