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Finding the Fourth Proportional to 135,953.71, 203,951.31 and 69,357.52

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Solution

The fourth proportional to 135,953.71, 203,951.31 and 69,357.52 is: 104,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,953.71 : 203,951.31 = 69,357.52 : x
  2. Step 2: Convert to fraction form
    135,953.71/203,951.31 = 69,357.52/x
  3. Step 3: Cross multiply
    135,953.71x = 203,951.31 × 69,357.52
  4. Step 4: Simplify right side
    135,953.71x = 14,145,557,062.35
  5. Step 5: Solve for x
    x = 14,145,557,062.35/135,953.71
  6. Step 6: Final answer
    x = 104,046.86

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1.5x scale

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.