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Finding the Fourth Proportional to 248,505.30, 342,941.22 and 135,327.96

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Solution

The fourth proportional to 248,505.30, 342,941.22 and 135,327.96 is: 186,754.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,505.30 : 342,941.22 = 135,327.96 : x
  2. Step 2: Convert to fraction form
    248,505.30/342,941.22 = 135,327.96/x
  3. Step 3: Cross multiply
    248,505.30x = 342,941.22 × 135,327.96
  4. Step 4: Simplify right side
    248,505.30x = 46,409,535,702.51
  5. Step 5: Solve for x
    x = 46,409,535,702.51/248,505.30
  6. Step 6: Final answer
    x = 186,754.71

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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.