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Finding the Fourth Proportional to 372,438.16, 558,709.79 and 119,633.91

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Solution

The fourth proportional to 372,438.16, 558,709.79 and 119,633.91 is: 179,467.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,438.16 : 558,709.79 = 119,633.91 : x
  2. Step 2: Convert to fraction form
    372,438.16/558,709.79 = 119,633.91/x
  3. Step 3: Cross multiply
    372,438.16x = 558,709.79 × 119,633.91
  4. Step 4: Simplify right side
    372,438.16x = 66,840,635,532.72
  5. Step 5: Solve for x
    x = 66,840,635,532.72/372,438.16
  6. Step 6: Final answer
    x = 179,467.74

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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.