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Finding the Fourth Proportional to 328,202.43, 492,259.90 and 91,525.29

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Solution

The fourth proportional to 328,202.43, 492,259.90 and 91,525.29 is: 137,275.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,202.43 : 492,259.90 = 91,525.29 : x
  2. Step 2: Convert to fraction form
    328,202.43/492,259.90 = 91,525.29/x
  3. Step 3: Cross multiply
    328,202.43x = 492,259.90 × 91,525.29
  4. Step 4: Simplify right side
    328,202.43x = 45,054,230,102.87
  5. Step 5: Solve for x
    x = 45,054,230,102.87/328,202.43
  6. Step 6: Final answer
    x = 137,275.74

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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.