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Finding the Fourth Proportional to 213,174.86, 294,179.50 and 117,679.50

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Solution

The fourth proportional to 213,174.86, 294,179.50 and 117,679.50 is: 162,396.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,174.86 : 294,179.50 = 117,679.50 : x
  2. Step 2: Convert to fraction form
    213,174.86/294,179.50 = 117,679.50/x
  3. Step 3: Cross multiply
    213,174.86x = 294,179.50 × 117,679.50
  4. Step 4: Simplify right side
    213,174.86x = 34,618,895,955.40
  5. Step 5: Solve for x
    x = 34,618,895,955.40/213,174.86
  6. Step 6: Final answer
    x = 162,396.71

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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.