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Finding the Fourth Proportional to 319,907.54, 479,700.43 and 106,599.92

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Solution

The fourth proportional to 319,907.54, 479,700.43 and 106,599.92 is: 159,846.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,907.54 : 479,700.43 = 106,599.92 : x
  2. Step 2: Convert to fraction form
    319,907.54/479,700.43 = 106,599.92/x
  3. Step 3: Cross multiply
    319,907.54x = 479,700.43 × 106,599.92
  4. Step 4: Simplify right side
    319,907.54x = 51,136,024,796.96
  5. Step 5: Solve for x
    x = 51,136,024,796.96/319,907.54
  6. Step 6: Final answer
    x = 159,846.26

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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.