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Finding the Fourth Proportional to 196,865.40, 295,516.80 and 108,291.90

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Solution

The fourth proportional to 196,865.40, 295,516.80 and 108,291.90 is: 162,558.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,865.40 : 295,516.80 = 108,291.90 : x
  2. Step 2: Convert to fraction form
    196,865.40/295,516.80 = 108,291.90/x
  3. Step 3: Cross multiply
    196,865.40x = 295,516.80 × 108,291.90
  4. Step 4: Simplify right side
    196,865.40x = 32,002,075,753.92
  5. Step 5: Solve for x
    x = 32,002,075,753.92/196,865.40
  6. Step 6: Final answer
    x = 162,558.15

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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.