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Finding the Fourth Proportional to 247,257, 341,216.79 and 134,079.75

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Solution

The fourth proportional to 247,257, 341,216.79 and 134,079.75 is: 185,031.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,257 : 341,216.79 = 134,079.75 : x
  2. Step 2: Convert to fraction form
    247,257/341,216.79 = 134,079.75/x
  3. Step 3: Cross multiply
    247,257x = 341,216.79 × 134,079.75
  4. Step 4: Simplify right side
    247,257x = 45,750,261,899.00
  5. Step 5: Solve for x
    x = 45,750,261,899.00/247,257
  6. Step 6: Final answer
    x = 185,031.21

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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.