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Finding the Fourth Proportional to 57,802.40, 86,703.60 and 44,680.40

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Solution

The fourth proportional to 57,802.40, 86,703.60 and 44,680.40 is: 67,020.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,802.40 : 86,703.60 = 44,680.40 : x
  2. Step 2: Convert to fraction form
    57,802.40/86,703.60 = 44,680.40/x
  3. Step 3: Cross multiply
    57,802.40x = 86,703.60 × 44,680.40
  4. Step 4: Simplify right side
    57,802.40x = 3,873,951,529.44
  5. Step 5: Solve for x
    x = 3,873,951,529.44/57,802.40
  6. Step 6: Final answer
    x = 67,020.60

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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.