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Finding the Fourth Proportional to 176,391.72, 264,586.32 and 71,209.08

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Solution

The fourth proportional to 176,391.72, 264,586.32 and 71,209.08 is: 106,813.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,391.72 : 264,586.32 = 71,209.08 : x
  2. Step 2: Convert to fraction form
    176,391.72/264,586.32 = 71,209.08/x
  3. Step 3: Cross multiply
    176,391.72x = 264,586.32 × 71,209.08
  4. Step 4: Simplify right side
    176,391.72x = 18,840,948,427.79
  5. Step 5: Solve for x
    x = 18,840,948,427.79/176,391.72
  6. Step 6: Final answer
    x = 106,813.11

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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.