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Finding the Fourth Proportional to 373,104.65, 559,651.77 and 212,838.56

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Solution

The fourth proportional to 373,104.65, 559,651.77 and 212,838.56 is: 319,254.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,104.65 : 559,651.77 = 212,838.56 : x
  2. Step 2: Convert to fraction form
    373,104.65/559,651.77 = 212,838.56/x
  3. Step 3: Cross multiply
    373,104.65x = 559,651.77 × 212,838.56
  4. Step 4: Simplify right side
    373,104.65x = 119,115,476,828.25
  5. Step 5: Solve for x
    x = 119,115,476,828.25/373,104.65
  6. Step 6: Final answer
    x = 319,254.87

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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.