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Finding the Fourth Proportional to 192,683.40, 289,025.10 and 153,025.80

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Solution

The fourth proportional to 192,683.40, 289,025.10 and 153,025.80 is: 229,538.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,683.40 : 289,025.10 = 153,025.80 : x
  2. Step 2: Convert to fraction form
    192,683.40/289,025.10 = 153,025.80/x
  3. Step 3: Cross multiply
    192,683.40x = 289,025.10 × 153,025.80
  4. Step 4: Simplify right side
    192,683.40x = 44,228,297,147.58
  5. Step 5: Solve for x
    x = 44,228,297,147.58/192,683.40
  6. Step 6: Final answer
    x = 229,538.70

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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.