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Finding the Fourth Proportional to 328,551.30, 492,887.79 and 103,968.27

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Solution

The fourth proportional to 328,551.30, 492,887.79 and 103,968.27 is: 155,971.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,551.30 : 492,887.79 = 103,968.27 : x
  2. Step 2: Convert to fraction form
    328,551.30/492,887.79 = 103,968.27/x
  3. Step 3: Cross multiply
    328,551.30x = 492,887.79 × 103,968.27
  4. Step 4: Simplify right side
    328,551.30x = 51,244,690,830.42
  5. Step 5: Solve for x
    x = 51,244,690,830.42/328,551.30
  6. Step 6: Final answer
    x = 155,971.66

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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.