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Finding the Fourth Proportional to 255,281.22, 383,096.79 and 89,069.22

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Solution

The fourth proportional to 255,281.22, 383,096.79 and 89,069.22 is: 133,664.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,281.22 : 383,096.79 = 89,069.22 : x
  2. Step 2: Convert to fraction form
    255,281.22/383,096.79 = 89,069.22/x
  3. Step 3: Cross multiply
    255,281.22x = 383,096.79 × 89,069.22
  4. Step 4: Simplify right side
    255,281.22x = 34,122,132,269.80
  5. Step 5: Solve for x
    x = 34,122,132,269.80/255,281.22
  6. Step 6: Final answer
    x = 133,664.87

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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.