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Finding the Fourth Proportional to 248,169.64, 342,476.76 and 134,992.66

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Solution

The fourth proportional to 248,169.64, 342,476.76 and 134,992.66 is: 186,291.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,169.64 : 342,476.76 = 134,992.66 : x
  2. Step 2: Convert to fraction form
    248,169.64/342,476.76 = 134,992.66/x
  3. Step 3: Cross multiply
    248,169.64x = 342,476.76 × 134,992.66
  4. Step 4: Simplify right side
    248,169.64x = 46,231,848,820.58
  5. Step 5: Solve for x
    x = 46,231,848,820.58/248,169.64
  6. Step 6: Final answer
    x = 186,291.32

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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.