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Finding the Fourth Proportional to 131,929.70, 197,894.54 and 58,057.70

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Solution

The fourth proportional to 131,929.70, 197,894.54 and 58,057.70 is: 87,086.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,929.70 : 197,894.54 = 58,057.70 : x
  2. Step 2: Convert to fraction form
    131,929.70/197,894.54 = 58,057.70/x
  3. Step 3: Cross multiply
    131,929.70x = 197,894.54 × 58,057.70
  4. Step 4: Simplify right side
    131,929.70x = 11,489,300,555.20
  5. Step 5: Solve for x
    x = 11,489,300,555.20/131,929.70
  6. Step 6: Final answer
    x = 87,086.54

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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.