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Finding the Fourth Proportional to 328,662.80, 492,848.40 and 151,224.20

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Solution

The fourth proportional to 328,662.80, 492,848.40 and 151,224.20 is: 226,769.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,662.80 : 492,848.40 = 151,224.20 : x
  2. Step 2: Convert to fraction form
    328,662.80/492,848.40 = 151,224.20/x
  3. Step 3: Cross multiply
    328,662.80x = 492,848.40 × 151,224.20
  4. Step 4: Simplify right side
    328,662.80x = 74,530,605,011.28
  5. Step 5: Solve for x
    x = 74,530,605,011.28/328,662.80
  6. Step 6: Final answer
    x = 226,769.21

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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.