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Finding the Fourth Proportional to 176,048.70, 264,065.71 and 81,247.38

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Solution

The fourth proportional to 176,048.70, 264,065.71 and 81,247.38 is: 121,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,048.70 : 264,065.71 = 81,247.38 : x
  2. Step 2: Convert to fraction form
    176,048.70/264,065.71 = 81,247.38/x
  3. Step 3: Cross multiply
    176,048.70x = 264,065.71 × 81,247.38
  4. Step 4: Simplify right side
    176,048.70x = 21,454,647,085.34
  5. Step 5: Solve for x
    x = 21,454,647,085.34/176,048.70
  6. Step 6: Final answer
    x = 121,867.68

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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.