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Finding the Fourth Proportional to 231,370.40, 347,055.60 and 106,711.40

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Solution

The fourth proportional to 231,370.40, 347,055.60 and 106,711.40 is: 160,067.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,370.40 : 347,055.60 = 106,711.40 : x
  2. Step 2: Convert to fraction form
    231,370.40/347,055.60 = 106,711.40/x
  3. Step 3: Cross multiply
    231,370.40x = 347,055.60 × 106,711.40
  4. Step 4: Simplify right side
    231,370.40x = 37,034,788,953.84
  5. Step 5: Solve for x
    x = 37,034,788,953.84/231,370.40
  6. Step 6: Final answer
    x = 160,067.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.