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Finding the Fourth Proportional to 247,804.80, 341,968.80 and 134,628.48

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Solution

The fourth proportional to 247,804.80, 341,968.80 and 134,628.48 is: 185,786.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,804.80 : 341,968.80 = 134,628.48 : x
  2. Step 2: Convert to fraction form
    247,804.80/341,968.80 = 134,628.48/x
  3. Step 3: Cross multiply
    247,804.80x = 341,968.80 × 134,628.48
  4. Step 4: Simplify right side
    247,804.80x = 46,038,739,751.42
  5. Step 5: Solve for x
    x = 46,038,739,751.42/247,804.80
  6. Step 6: Final answer
    x = 185,786.31

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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.