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Finding the Fourth Proportional to 170,479.94, 255,793.77 and 91,501.88

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Solution

The fourth proportional to 170,479.94, 255,793.77 and 91,501.88 is: 137,292.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,479.94 : 255,793.77 = 91,501.88 : x
  2. Step 2: Convert to fraction form
    170,479.94/255,793.77 = 91,501.88/x
  3. Step 3: Cross multiply
    170,479.94x = 255,793.77 × 91,501.88
  4. Step 4: Simplify right side
    170,479.94x = 23,405,609,568.32
  5. Step 5: Solve for x
    x = 23,405,609,568.32/170,479.94
  6. Step 6: Final answer
    x = 137,292.46

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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.