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Finding the Fourth Proportional to 247,921.64, 342,130.25 and 134,744.39

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Solution

The fourth proportional to 247,921.64, 342,130.25 and 134,744.39 is: 185,946.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,921.64 : 342,130.25 = 134,744.39 : x
  2. Step 2: Convert to fraction form
    247,921.64/342,130.25 = 134,744.39/x
  3. Step 3: Cross multiply
    247,921.64x = 342,130.25 × 134,744.39
  4. Step 4: Simplify right side
    247,921.64x = 46,100,129,452.42
  5. Step 5: Solve for x
    x = 46,100,129,452.42/247,921.64
  6. Step 6: Final answer
    x = 185,946.38

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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.