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Finding the Fourth Proportional to 246,505.68, 340,148.97 and 139,069.31

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Solution

The fourth proportional to 246,505.68, 340,148.97 and 139,069.31 is: 191,899.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,505.68 : 340,148.97 = 139,069.31 : x
  2. Step 2: Convert to fraction form
    246,505.68/340,148.97 = 139,069.31/x
  3. Step 3: Cross multiply
    246,505.68x = 340,148.97 × 139,069.31
  4. Step 4: Simplify right side
    246,505.68x = 47,304,280,854.37
  5. Step 5: Solve for x
    x = 47,304,280,854.37/246,505.68
  6. Step 6: Final answer
    x = 191,899.35

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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.