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Finding the Fourth Proportional to 262,948.79, 394,489.51 and 73,409.00

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Solution

The fourth proportional to 262,948.79, 394,489.51 and 73,409.00 is: 110,132.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,948.79 : 394,489.51 = 73,409.00 : x
  2. Step 2: Convert to fraction form
    262,948.79/394,489.51 = 73,409.00/x
  3. Step 3: Cross multiply
    262,948.79x = 394,489.51 × 73,409.00
  4. Step 4: Simplify right side
    262,948.79x = 28,959,078,283.62
  5. Step 5: Solve for x
    x = 28,959,078,283.62/262,948.79
  6. Step 6: Final answer
    x = 110,132.01

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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.