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Finding the Fourth Proportional to 328,677.54, 492,966.74 and 104,008.80

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Solution

The fourth proportional to 328,677.54, 492,966.74 and 104,008.80 is: 155,997.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,677.54 : 492,966.74 = 104,008.80 : x
  2. Step 2: Convert to fraction form
    328,677.54/492,966.74 = 104,008.80/x
  3. Step 3: Cross multiply
    328,677.54x = 492,966.74 × 104,008.80
  4. Step 4: Simplify right side
    328,677.54x = 51,272,879,067.31
  5. Step 5: Solve for x
    x = 51,272,879,067.31/328,677.54
  6. Step 6: Final answer
    x = 155,997.51

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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.