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Finding the Fourth Proportional to 211,172.54, 316,800.18 and 92,843.55

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Solution

The fourth proportional to 211,172.54, 316,800.18 and 92,843.55 is: 139,283.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,172.54 : 316,800.18 = 92,843.55 : x
  2. Step 2: Convert to fraction form
    211,172.54/316,800.18 = 92,843.55/x
  3. Step 3: Cross multiply
    211,172.54x = 316,800.18 × 92,843.55
  4. Step 4: Simplify right side
    211,172.54x = 29,412,853,351.84
  5. Step 5: Solve for x
    x = 29,412,853,351.84/211,172.54
  6. Step 6: Final answer
    x = 139,283.52

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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.