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Finding the Fourth Proportional to 248,211.92, 342,533.14 and 135,034.68

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Solution

The fourth proportional to 248,211.92, 342,533.14 and 135,034.68 is: 186,348.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,211.92 : 342,533.14 = 135,034.68 : x
  2. Step 2: Convert to fraction form
    248,211.92/342,533.14 = 135,034.68/x
  3. Step 3: Cross multiply
    248,211.92x = 342,533.14 × 135,034.68
  4. Step 4: Simplify right side
    248,211.92x = 46,253,852,949.30
  5. Step 5: Solve for x
    x = 46,253,852,949.30/248,211.92
  6. Step 6: Final answer
    x = 186,348.23

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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.