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Finding the Fourth Proportional to 196,342.80, 294,427.80 and 77,974.80

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Solution

The fourth proportional to 196,342.80, 294,427.80 and 77,974.80 is: 116,927.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,342.80 : 294,427.80 = 77,974.80 : x
  2. Step 2: Convert to fraction form
    196,342.80/294,427.80 = 77,974.80/x
  3. Step 3: Cross multiply
    196,342.80x = 294,427.80 × 77,974.80
  4. Step 4: Simplify right side
    196,342.80x = 22,957,948,819.44
  5. Step 5: Solve for x
    x = 22,957,948,819.44/196,342.80
  6. Step 6: Final answer
    x = 116,927.89

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1.5x scale

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.