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Finding the Fourth Proportional to 355,776.83, 533,874.78 and 131,295.23

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Solution

The fourth proportional to 355,776.83, 533,874.78 and 131,295.23 is: 197,020.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,776.83 : 533,874.78 = 131,295.23 : x
  2. Step 2: Convert to fraction form
    355,776.83/533,874.78 = 131,295.23/x
  3. Step 3: Cross multiply
    355,776.83x = 533,874.78 × 131,295.23
  4. Step 4: Simplify right side
    355,776.83x = 70,095,212,031.30
  5. Step 5: Solve for x
    x = 70,095,212,031.30/355,776.83
  6. Step 6: Final answer
    x = 197,020.17

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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.