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Finding the Fourth Proportional to 176,128.80, 263,890.80 and 82,442.40

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Solution

The fourth proportional to 176,128.80, 263,890.80 and 82,442.40 is: 123,522.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,128.80 : 263,890.80 = 82,442.40 : x
  2. Step 2: Convert to fraction form
    176,128.80/263,890.80 = 82,442.40/x
  3. Step 3: Cross multiply
    176,128.80x = 263,890.80 × 82,442.40
  4. Step 4: Simplify right side
    176,128.80x = 21,755,790,889.92
  5. Step 5: Solve for x
    x = 21,755,790,889.92/176,128.80
  6. Step 6: Final answer
    x = 123,522.05

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1.5x scale

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.