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Finding the Fourth Proportional to 316,910.88, 437,340.45 and 173,667.84

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Solution

The fourth proportional to 316,910.88, 437,340.45 and 173,667.84 is: 239,663.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,910.88 : 437,340.45 = 173,667.84 : x
  2. Step 2: Convert to fraction form
    316,910.88/437,340.45 = 173,667.84/x
  3. Step 3: Cross multiply
    316,910.88x = 437,340.45 × 173,667.84
  4. Step 4: Simplify right side
    316,910.88x = 75,951,971,296.13
  5. Step 5: Solve for x
    x = 75,951,971,296.13/316,910.88
  6. Step 6: Final answer
    x = 239,663.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.