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Finding the Fourth Proportional to 483,650.96, 725,475.54 and 128,664.98

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Solution

The fourth proportional to 483,650.96, 725,475.54 and 128,664.98 is: 192,997.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,650.96 : 725,475.54 = 128,664.98 : x
  2. Step 2: Convert to fraction form
    483,650.96/725,475.54 = 128,664.98/x
  3. Step 3: Cross multiply
    483,650.96x = 725,475.54 × 128,664.98
  4. Step 4: Simplify right side
    483,650.96x = 93,343,295,844.59
  5. Step 5: Solve for x
    x = 93,343,295,844.59/483,650.96
  6. Step 6: Final answer
    x = 192,997.23

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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.