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Finding the Fourth Proportional to 199,264.14, 298,688.61 and 86,914.19

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Solution

The fourth proportional to 199,264.14, 298,688.61 and 86,914.19 is: 130,280.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,264.14 : 298,688.61 = 86,914.19 : x
  2. Step 2: Convert to fraction form
    199,264.14/298,688.61 = 86,914.19/x
  3. Step 3: Cross multiply
    199,264.14x = 298,688.61 × 86,914.19
  4. Step 4: Simplify right side
    199,264.14x = 25,960,278,165.81
  5. Step 5: Solve for x
    x = 25,960,278,165.81/199,264.14
  6. Step 6: Final answer
    x = 130,280.73

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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.