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Finding the Fourth Proportional to 328,513.10, 492,769.65 and 151,366.10

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Solution

The fourth proportional to 328,513.10, 492,769.65 and 151,366.10 is: 227,049.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,513.10 : 492,769.65 = 151,366.10 : x
  2. Step 2: Convert to fraction form
    328,513.10/492,769.65 = 151,366.10/x
  3. Step 3: Cross multiply
    328,513.10x = 492,769.65 × 151,366.10
  4. Step 4: Simplify right side
    328,513.10x = 74,588,620,118.87
  5. Step 5: Solve for x
    x = 74,588,620,118.87/328,513.10
  6. Step 6: Final answer
    x = 227,049.15

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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.