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Finding the Fourth Proportional to 443,552.64, 665,329.92 and 111,129.60

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Solution

The fourth proportional to 443,552.64, 665,329.92 and 111,129.60 is: 166,694.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,552.64 : 665,329.92 = 111,129.60 : x
  2. Step 2: Convert to fraction form
    443,552.64/665,329.92 = 111,129.60/x
  3. Step 3: Cross multiply
    443,552.64x = 665,329.92 × 111,129.60
  4. Step 4: Simplify right side
    443,552.64x = 73,937,847,877.63
  5. Step 5: Solve for x
    x = 73,937,847,877.63/443,552.64
  6. Step 6: Final answer
    x = 166,694.64

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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.