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Finding the Fourth Proportional to 176,085.70, 264,301.35 and 87,439.30

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Solution

The fourth proportional to 176,085.70, 264,301.35 and 87,439.30 is: 131,244.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,085.70 : 264,301.35 = 87,439.30 : x
  2. Step 2: Convert to fraction form
    176,085.70/264,301.35 = 87,439.30/x
  3. Step 3: Cross multiply
    176,085.70x = 264,301.35 × 87,439.30
  4. Step 4: Simplify right side
    176,085.70x = 23,110,325,033.06
  5. Step 5: Solve for x
    x = 23,110,325,033.06/176,085.70
  6. Step 6: Final answer
    x = 131,244.76

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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.