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Finding the Fourth Proportional to 117,767.52, 176,243.04 and 112,868.64

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Solution

The fourth proportional to 117,767.52, 176,243.04 and 112,868.64 is: 168,911.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,767.52 : 176,243.04 = 112,868.64 : x
  2. Step 2: Convert to fraction form
    117,767.52/176,243.04 = 112,868.64/x
  3. Step 3: Cross multiply
    117,767.52x = 176,243.04 × 112,868.64
  4. Step 4: Simplify right side
    117,767.52x = 19,892,312,234.27
  5. Step 5: Solve for x
    x = 19,892,312,234.27/117,767.52
  6. Step 6: Final answer
    x = 168,911.70

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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.