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Finding the Fourth Proportional to 213,512.69, 294,634.87 and 118,013.69

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Solution

The fourth proportional to 213,512.69, 294,634.87 and 118,013.69 is: 162,851.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,512.69 : 294,634.87 = 118,013.69 : x
  2. Step 2: Convert to fraction form
    213,512.69/294,634.87 = 118,013.69/x
  3. Step 3: Cross multiply
    213,512.69x = 294,634.87 × 118,013.69
  4. Step 4: Simplify right side
    213,512.69x = 34,770,948,652.92
  5. Step 5: Solve for x
    x = 34,770,948,652.92/213,512.69
  6. Step 6: Final answer
    x = 162,851.90

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1.5x scale

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.