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Finding the Fourth Proportional to 400,539.22, 600,732.36 and 120,056.48

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Solution

The fourth proportional to 400,539.22, 600,732.36 and 120,056.48 is: 180,061.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,539.22 : 600,732.36 = 120,056.48 : x
  2. Step 2: Convert to fraction form
    400,539.22/600,732.36 = 120,056.48/x
  3. Step 3: Cross multiply
    400,539.22x = 600,732.36 × 120,056.48
  4. Step 4: Simplify right side
    400,539.22x = 72,121,812,563.69
  5. Step 5: Solve for x
    x = 72,121,812,563.69/400,539.22
  6. Step 6: Final answer
    x = 180,061.80

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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.