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Finding the Fourth Proportional to 106,708.41, 147,326.31 and 68,484.42

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Solution

The fourth proportional to 106,708.41, 147,326.31 and 68,484.42 is: 94,552.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,708.41 : 147,326.31 = 68,484.42 : x
  2. Step 2: Convert to fraction form
    106,708.41/147,326.31 = 68,484.42/x
  3. Step 3: Cross multiply
    106,708.41x = 147,326.31 × 68,484.42
  4. Step 4: Simplify right side
    106,708.41x = 10,089,556,891.09
  5. Step 5: Solve for x
    x = 10,089,556,891.09/106,708.41
  6. Step 6: Final answer
    x = 94,552.59

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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.