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Finding the Fourth Proportional to 210,940.20, 316,410.30 and 63,196.20

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Solution

The fourth proportional to 210,940.20, 316,410.30 and 63,196.20 is: 94,794.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,940.20 : 316,410.30 = 63,196.20 : x
  2. Step 2: Convert to fraction form
    210,940.20/316,410.30 = 63,196.20/x
  3. Step 3: Cross multiply
    210,940.20x = 316,410.30 × 63,196.20
  4. Step 4: Simplify right side
    210,940.20x = 19,995,928,600.86
  5. Step 5: Solve for x
    x = 19,995,928,600.86/210,940.20
  6. Step 6: Final answer
    x = 94,794.30

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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.