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Finding the Fourth Proportional to 115,597.10, 173,395.65 and 36,719.30

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Solution

The fourth proportional to 115,597.10, 173,395.65 and 36,719.30 is: 55,078.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,597.10 : 173,395.65 = 36,719.30 : x
  2. Step 2: Convert to fraction form
    115,597.10/173,395.65 = 36,719.30/x
  3. Step 3: Cross multiply
    115,597.10x = 173,395.65 × 36,719.30
  4. Step 4: Simplify right side
    115,597.10x = 6,366,966,891.05
  5. Step 5: Solve for x
    x = 6,366,966,891.05/115,597.10
  6. Step 6: Final answer
    x = 55,078.95

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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.