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Finding the Fourth Proportional to 213,132.44, 319,698.12 and 200,141.12

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Solution

The fourth proportional to 213,132.44, 319,698.12 and 200,141.12 is: 300,211.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,132.44 : 319,698.12 = 200,141.12 : x
  2. Step 2: Convert to fraction form
    213,132.44/319,698.12 = 200,141.12/x
  3. Step 3: Cross multiply
    213,132.44x = 319,698.12 × 200,141.12
  4. Step 4: Simplify right side
    213,132.44x = 63,984,739,798.69
  5. Step 5: Solve for x
    x = 63,984,739,798.69/213,132.44
  6. Step 6: Final answer
    x = 300,211.17

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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.