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Finding the Fourth Proportional to 176,502.78, 264,420.09 and 136,865.34

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Solution

The fourth proportional to 176,502.78, 264,420.09 and 136,865.34 is: 205,038.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,502.78 : 264,420.09 = 136,865.34 : x
  2. Step 2: Convert to fraction form
    176,502.78/264,420.09 = 136,865.34/x
  3. Step 3: Cross multiply
    176,502.78x = 264,420.09 × 136,865.34
  4. Step 4: Simplify right side
    176,502.78x = 36,189,945,520.68
  5. Step 5: Solve for x
    x = 36,189,945,520.68/176,502.78
  6. Step 6: Final answer
    x = 205,038.95

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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.