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Finding the Fourth Proportional to 104,295.16, 143,928.42 and 61,276.43

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Solution

The fourth proportional to 104,295.16, 143,928.42 and 61,276.43 is: 84,562.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,295.16 : 143,928.42 = 61,276.43 : x
  2. Step 2: Convert to fraction form
    104,295.16/143,928.42 = 61,276.43/x
  3. Step 3: Cross multiply
    104,295.16x = 143,928.42 × 61,276.43
  4. Step 4: Simplify right side
    104,295.16x = 8,819,419,753.14
  5. Step 5: Solve for x
    x = 8,819,419,753.14/104,295.16
  6. Step 6: Final answer
    x = 84,562.12

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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.