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Finding the Fourth Proportional to 117,874.64, 162,674.76 and 67,574.48

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Solution

The fourth proportional to 117,874.64, 162,674.76 and 67,574.48 is: 93,257.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,874.64 : 162,674.76 = 67,574.48 : x
  2. Step 2: Convert to fraction form
    117,874.64/162,674.76 = 67,574.48/x
  3. Step 3: Cross multiply
    117,874.64x = 162,674.76 × 67,574.48
  4. Step 4: Simplify right side
    117,874.64x = 10,992,662,316.12
  5. Step 5: Solve for x
    x = 10,992,662,316.12/117,874.64
  6. Step 6: Final answer
    x = 93,257.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.