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Finding the Fourth Proportional to 196,168.80, 294,296.80 and 71,509.76

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Solution

The fourth proportional to 196,168.80, 294,296.80 and 71,509.76 is: 107,280.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,168.80 : 294,296.80 = 71,509.76 : x
  2. Step 2: Convert to fraction form
    196,168.80/294,296.80 = 71,509.76/x
  3. Step 3: Cross multiply
    196,168.80x = 294,296.80 × 71,509.76
  4. Step 4: Simplify right side
    196,168.80x = 21,045,093,536.77
  5. Step 5: Solve for x
    x = 21,045,093,536.77/196,168.80
  6. Step 6: Final answer
    x = 107,280.53

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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.