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Finding the Fourth Proportional to 328,553.55, 492,891.17 and 103,970.52

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Solution

The fourth proportional to 328,553.55, 492,891.17 and 103,970.52 is: 155,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,553.55 : 492,891.17 = 103,970.52 : x
  2. Step 2: Convert to fraction form
    328,553.55/492,891.17 = 103,970.52/x
  3. Step 3: Cross multiply
    328,553.55x = 492,891.17 × 103,970.52
  4. Step 4: Simplify right side
    328,553.55x = 51,246,150,728.46
  5. Step 5: Solve for x
    x = 51,246,150,728.46/328,553.55
  6. Step 6: Final answer
    x = 155,975.03

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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.