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Finding the Fourth Proportional to 247,863.50, 342,050.94 and 134,686.22

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Solution

The fourth proportional to 247,863.50, 342,050.94 and 134,686.22 is: 185,866.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,863.50 : 342,050.94 = 134,686.22 : x
  2. Step 2: Convert to fraction form
    247,863.50/342,050.94 = 134,686.22/x
  3. Step 3: Cross multiply
    247,863.50x = 342,050.94 × 134,686.22
  4. Step 4: Simplify right side
    247,863.50x = 46,069,548,156.05
  5. Step 5: Solve for x
    x = 46,069,548,156.05/247,863.50
  6. Step 6: Final answer
    x = 185,866.61

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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.