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Finding the Fourth Proportional to 331,343.51, 497,015.26 and 82,025.51

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Solution

The fourth proportional to 331,343.51, 497,015.26 and 82,025.51 is: 123,038.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,343.51 : 497,015.26 = 82,025.51 : x
  2. Step 2: Convert to fraction form
    331,343.51/497,015.26 = 82,025.51/x
  3. Step 3: Cross multiply
    331,343.51x = 497,015.26 × 82,025.51
  4. Step 4: Simplify right side
    331,343.51x = 40,767,929,769.16
  5. Step 5: Solve for x
    x = 40,767,929,769.16/331,343.51
  6. Step 6: Final answer
    x = 123,038.26

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1.5x scale

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.