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Finding the Fourth Proportional to 172,470.85, 237,806.16 and 118,049.24

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Solution

The fourth proportional to 172,470.85, 237,806.16 and 118,049.24 is: 162,768.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,470.85 : 237,806.16 = 118,049.24 : x
  2. Step 2: Convert to fraction form
    172,470.85/237,806.16 = 118,049.24/x
  3. Step 3: Cross multiply
    172,470.85x = 237,806.16 × 118,049.24
  4. Step 4: Simplify right side
    172,470.85x = 28,072,836,455.32
  5. Step 5: Solve for x
    x = 28,072,836,455.32/172,470.85
  6. Step 6: Final answer
    x = 162,768.59

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.