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Finding the Fourth Proportional to 104,047.71, 143,532.92 and 63,200.96

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Solution

The fourth proportional to 104,047.71, 143,532.92 and 63,200.96 is: 87,185.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,047.71 : 143,532.92 = 63,200.96 : x
  2. Step 2: Convert to fraction form
    104,047.71/143,532.92 = 63,200.96/x
  3. Step 3: Cross multiply
    104,047.71x = 143,532.92 × 63,200.96
  4. Step 4: Simplify right side
    104,047.71x = 9,071,418,852.44
  5. Step 5: Solve for x
    x = 9,071,418,852.44/104,047.71
  6. Step 6: Final answer
    x = 87,185.19

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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.