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Finding the Fourth Proportional to 319,469.58, 479,153.54 and 106,219.76

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Solution

The fourth proportional to 319,469.58, 479,153.54 and 106,219.76 is: 159,312.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,469.58 : 479,153.54 = 106,219.76 : x
  2. Step 2: Convert to fraction form
    319,469.58/479,153.54 = 106,219.76/x
  3. Step 3: Cross multiply
    319,469.58x = 479,153.54 × 106,219.76
  4. Step 4: Simplify right side
    319,469.58x = 50,895,574,021.95
  5. Step 5: Solve for x
    x = 50,895,574,021.95/319,469.58
  6. Step 6: Final answer
    x = 159,312.74

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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.