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Finding the Fourth Proportional to 255,267.75, 383,076.60 and 89,055.75

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Solution

The fourth proportional to 255,267.75, 383,076.60 and 89,055.75 is: 133,644.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,267.75 : 383,076.60 = 89,055.75 : x
  2. Step 2: Convert to fraction form
    255,267.75/383,076.60 = 89,055.75/x
  3. Step 3: Cross multiply
    255,267.75x = 383,076.60 × 89,055.75
  4. Step 4: Simplify right side
    255,267.75x = 34,115,173,920.45
  5. Step 5: Solve for x
    x = 34,115,173,920.45/255,267.75
  6. Step 6: Final answer
    x = 133,644.67

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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.