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Finding the Fourth Proportional to 373,113.72, 559,726.74 and 133,209.72

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Solution

The fourth proportional to 373,113.72, 559,726.74 and 133,209.72 is: 199,834.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,113.72 : 559,726.74 = 133,209.72 : x
  2. Step 2: Convert to fraction form
    373,113.72/559,726.74 = 133,209.72/x
  3. Step 3: Cross multiply
    373,113.72x = 559,726.74 × 133,209.72
  4. Step 4: Simplify right side
    373,113.72x = 74,561,042,311.91
  5. Step 5: Solve for x
    x = 74,561,042,311.91/373,113.72
  6. Step 6: Final answer
    x = 199,834.63

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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.