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Finding the Fourth Proportional to 170,474.34, 255,785.25 and 91,496.30

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Solution

The fourth proportional to 170,474.34, 255,785.25 and 91,496.30 is: 137,284.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,474.34 : 255,785.25 = 91,496.30 : x
  2. Step 2: Convert to fraction form
    170,474.34/255,785.25 = 91,496.30/x
  3. Step 3: Cross multiply
    170,474.34x = 255,785.25 × 91,496.30
  4. Step 4: Simplify right side
    170,474.34x = 23,403,402,690.65
  5. Step 5: Solve for x
    x = 23,403,402,690.65/170,474.34
  6. Step 6: Final answer
    x = 137,284.02

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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.