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Finding the Fourth Proportional to 319,902.62, 479,804.72 and 106,674.23

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Solution

The fourth proportional to 319,902.62, 479,804.72 and 106,674.23 is: 159,994.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,902.62 : 479,804.72 = 106,674.23 : x
  2. Step 2: Convert to fraction form
    319,902.62/479,804.72 = 106,674.23/x
  3. Step 3: Cross multiply
    319,902.62x = 479,804.72 × 106,674.23
  4. Step 4: Simplify right side
    319,902.62x = 51,182,799,722.51
  5. Step 5: Solve for x
    x = 51,182,799,722.51/319,902.62
  6. Step 6: Final answer
    x = 159,994.94

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1.5x scale

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.