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Finding the Fourth Proportional to 247,898.22, 342,103.23 and 134,721.06

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Solution

The fourth proportional to 247,898.22, 342,103.23 and 134,721.06 is: 185,917.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,898.22 : 342,103.23 = 134,721.06 : x
  2. Step 2: Convert to fraction form
    247,898.22/342,103.23 = 134,721.06/x
  3. Step 3: Cross multiply
    247,898.22x = 342,103.23 × 134,721.06
  4. Step 4: Simplify right side
    247,898.22x = 46,088,509,775.02
  5. Step 5: Solve for x
    x = 46,088,509,775.02/247,898.22
  6. Step 6: Final answer
    x = 185,917.07

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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.