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Finding the Fourth Proportional to 313,885.56, 470,761.92 and 103,473.48

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Solution

The fourth proportional to 313,885.56, 470,761.92 and 103,473.48 is: 155,188.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,885.56 : 470,761.92 = 103,473.48 : x
  2. Step 2: Convert to fraction form
    313,885.56/470,761.92 = 103,473.48/x
  3. Step 3: Cross multiply
    313,885.56x = 470,761.92 × 103,473.48
  4. Step 4: Simplify right side
    313,885.56x = 48,711,374,113.88
  5. Step 5: Solve for x
    x = 48,711,374,113.88/313,885.56
  6. Step 6: Final answer
    x = 155,188.32

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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.