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Finding the Fourth Proportional to 213,373.24, 294,450.74 and 117,879

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Solution

The fourth proportional to 213,373.24, 294,450.74 and 117,879 is: 162,670.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,373.24 : 294,450.74 = 117,879 : x
  2. Step 2: Convert to fraction form
    213,373.24/294,450.74 = 117,879/x
  3. Step 3: Cross multiply
    213,373.24x = 294,450.74 × 117,879
  4. Step 4: Simplify right side
    213,373.24x = 34,709,558,780.46
  5. Step 5: Solve for x
    x = 34,709,558,780.46/213,373.24
  6. Step 6: Final answer
    x = 162,670.63

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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.