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Finding the Fourth Proportional to 217,844.70, 326,767.05 and 70,100.70

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Solution

The fourth proportional to 217,844.70, 326,767.05 and 70,100.70 is: 105,151.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,844.70 : 326,767.05 = 70,100.70 : x
  2. Step 2: Convert to fraction form
    217,844.70/326,767.05 = 70,100.70/x
  3. Step 3: Cross multiply
    217,844.70x = 326,767.05 × 70,100.70
  4. Step 4: Simplify right side
    217,844.70x = 22,906,598,941.94
  5. Step 5: Solve for x
    x = 22,906,598,941.94/217,844.70
  6. Step 6: Final answer
    x = 105,151.05

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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.