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Finding the Fourth Proportional to 69,802.82, 104,664.50 and 47,643.04

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Solution

The fourth proportional to 69,802.82, 104,664.50 and 47,643.04 is: 71,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,802.82 : 104,664.50 = 47,643.04 : x
  2. Step 2: Convert to fraction form
    69,802.82/104,664.50 = 47,643.04/x
  3. Step 3: Cross multiply
    69,802.82x = 104,664.50 × 47,643.04
  4. Step 4: Simplify right side
    69,802.82x = 4,986,534,960.08
  5. Step 5: Solve for x
    x = 4,986,534,960.08/69,802.82
  6. Step 6: Final answer
    x = 71,437.44

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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.