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Finding the Fourth Proportional to 316,633.07, 474,998.83 and 106,320.21

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Solution

The fourth proportional to 316,633.07, 474,998.83 and 106,320.21 is: 159,496.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,633.07 : 474,998.83 = 106,320.21 : x
  2. Step 2: Convert to fraction form
    316,633.07/474,998.83 = 106,320.21/x
  3. Step 3: Cross multiply
    316,633.07x = 474,998.83 × 106,320.21
  4. Step 4: Simplify right side
    316,633.07x = 50,501,976,578.23
  5. Step 5: Solve for x
    x = 50,501,976,578.23/316,633.07
  6. Step 6: Final answer
    x = 159,496.85

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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.