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Finding the Fourth Proportional to 247,963.02, 342,189.19 and 134,785.77

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Solution

The fourth proportional to 247,963.02, 342,189.19 and 134,785.77 is: 186,004.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,963.02 : 342,189.19 = 134,785.77 : x
  2. Step 2: Convert to fraction form
    247,963.02/342,189.19 = 134,785.77/x
  3. Step 3: Cross multiply
    247,963.02x = 342,189.19 × 134,785.77
  4. Step 4: Simplify right side
    247,963.02x = 46,122,231,748.88
  5. Step 5: Solve for x
    x = 46,122,231,748.88/247,963.02
  6. Step 6: Final answer
    x = 186,004.48

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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.