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Finding the Fourth Proportional to 355,358.67, 533,247.99 and 130,876.89

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Solution

The fourth proportional to 355,358.67, 533,247.99 and 130,876.89 is: 196,392.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,358.67 : 533,247.99 = 130,876.89 : x
  2. Step 2: Convert to fraction form
    355,358.67/533,247.99 = 130,876.89/x
  3. Step 3: Cross multiply
    355,358.67x = 533,247.99 × 130,876.89
  4. Step 4: Simplify right side
    355,358.67x = 69,789,838,529.95
  5. Step 5: Solve for x
    x = 69,789,838,529.95/355,358.67
  6. Step 6: Final answer
    x = 196,392.67

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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.