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Finding the Fourth Proportional to 170,479.60, 255,719.40 and 59,682.80

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Solution

The fourth proportional to 170,479.60, 255,719.40 and 59,682.80 is: 89,524.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,479.60 : 255,719.40 = 59,682.80 : x
  2. Step 2: Convert to fraction form
    170,479.60/255,719.40 = 59,682.80/x
  3. Step 3: Cross multiply
    170,479.60x = 255,719.40 × 59,682.80
  4. Step 4: Simplify right side
    170,479.60x = 15,262,049,806.32
  5. Step 5: Solve for x
    x = 15,262,049,806.32/170,479.60
  6. Step 6: Final answer
    x = 89,524.20

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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.