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Finding the Fourth Proportional to 443,451.48, 665,220.86 and 119,235.54

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Solution

The fourth proportional to 443,451.48, 665,220.86 and 119,235.54 is: 178,865.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,451.48 : 665,220.86 = 119,235.54 : x
  2. Step 2: Convert to fraction form
    443,451.48/665,220.86 = 119,235.54/x
  3. Step 3: Cross multiply
    443,451.48x = 665,220.86 × 119,235.54
  4. Step 4: Simplify right side
    443,451.48x = 79,317,968,461.36
  5. Step 5: Solve for x
    x = 79,317,968,461.36/443,451.48
  6. Step 6: Final answer
    x = 178,865.04

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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.