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Finding the Fourth Proportional to 45,374.60, 68,054.19 and 12,098.18

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Solution

The fourth proportional to 45,374.60, 68,054.19 and 12,098.18 is: 18,145.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,374.60 : 68,054.19 = 12,098.18 : x
  2. Step 2: Convert to fraction form
    45,374.60/68,054.19 = 12,098.18/x
  3. Step 3: Cross multiply
    45,374.60x = 68,054.19 × 12,098.18
  4. Step 4: Simplify right side
    45,374.60x = 823,331,500.10
  5. Step 5: Solve for x
    x = 823,331,500.10/45,374.60
  6. Step 6: Final answer
    x = 18,145.21

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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.