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Finding the Fourth Proportional to 319,648.01, 479,346.71 and 119,859.48

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Solution

The fourth proportional to 319,648.01, 479,346.71 and 119,859.48 is: 179,742.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,648.01 : 479,346.71 = 119,859.48 : x
  2. Step 2: Convert to fraction form
    319,648.01/479,346.71 = 119,859.48/x
  3. Step 3: Cross multiply
    319,648.01x = 479,346.71 × 119,859.48
  4. Step 4: Simplify right side
    319,648.01x = 57,454,246,801.01
  5. Step 5: Solve for x
    x = 57,454,246,801.01/319,648.01
  6. Step 6: Final answer
    x = 179,742.23

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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.