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Finding the Fourth Proportional to 316,093.98, 474,141.36 and 129,105.48

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Solution

The fourth proportional to 316,093.98, 474,141.36 and 129,105.48 is: 193,658.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,093.98 : 474,141.36 = 129,105.48 : x
  2. Step 2: Convert to fraction form
    316,093.98/474,141.36 = 129,105.48/x
  3. Step 3: Cross multiply
    316,093.98x = 474,141.36 × 129,105.48
  4. Step 4: Simplify right side
    316,093.98x = 61,214,247,870.65
  5. Step 5: Solve for x
    x = 61,214,247,870.65/316,093.98
  6. Step 6: Final answer
    x = 193,658.38

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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.