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Finding the Fourth Proportional to 319,880.54, 479,659.93 and 106,572.92

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Solution

The fourth proportional to 319,880.54, 479,659.93 and 106,572.92 is: 159,805.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,880.54 : 479,659.93 = 106,572.92 : x
  2. Step 2: Convert to fraction form
    319,880.54/479,659.93 = 106,572.92/x
  3. Step 3: Cross multiply
    319,880.54x = 479,659.93 × 106,572.92
  4. Step 4: Simplify right side
    319,880.54x = 51,118,756,682.36
  5. Step 5: Solve for x
    x = 51,118,756,682.36/319,880.54
  6. Step 6: Final answer
    x = 159,805.77

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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.