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Finding the Fourth Proportional to 131,762.84, 197,841.08 and 129,794.54

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Solution

The fourth proportional to 131,762.84, 197,841.08 and 129,794.54 is: 194,885.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,762.84 : 197,841.08 = 129,794.54 : x
  2. Step 2: Convert to fraction form
    131,762.84/197,841.08 = 129,794.54/x
  3. Step 3: Cross multiply
    131,762.84x = 197,841.08 × 129,794.54
  4. Step 4: Simplify right side
    131,762.84x = 25,678,690,982.50
  5. Step 5: Solve for x
    x = 25,678,690,982.50/131,762.84
  6. Step 6: Final answer
    x = 194,885.69

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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.