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Finding the Fourth Proportional to 328,536.33, 492,865.26 and 103,953.30

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Solution

The fourth proportional to 328,536.33, 492,865.26 and 103,953.30 is: 155,949.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,536.33 : 492,865.26 = 103,953.30 : x
  2. Step 2: Convert to fraction form
    328,536.33/492,865.26 = 103,953.30/x
  3. Step 3: Cross multiply
    328,536.33x = 492,865.26 × 103,953.30
  4. Step 4: Simplify right side
    328,536.33x = 51,234,970,232.36
  5. Step 5: Solve for x
    x = 51,234,970,232.36/328,536.33
  6. Step 6: Final answer
    x = 155,949.18

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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.