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Finding the Fourth Proportional to 211,398.94, 316,765.82 and 163,484.84

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Solution

The fourth proportional to 211,398.94, 316,765.82 and 163,484.84 is: 244,970.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,398.94 : 316,765.82 = 163,484.84 : x
  2. Step 2: Convert to fraction form
    211,398.94/316,765.82 = 163,484.84/x
  3. Step 3: Cross multiply
    211,398.94x = 316,765.82 × 163,484.84
  4. Step 4: Simplify right side
    211,398.94x = 51,786,410,600.80
  5. Step 5: Solve for x
    x = 51,786,410,600.80/211,398.94
  6. Step 6: Final answer
    x = 244,970.06

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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.