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Finding the Fourth Proportional to 443,553.60, 665,232.48 and 127,941.60

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Solution

The fourth proportional to 443,553.60, 665,232.48 and 127,941.60 is: 191,884.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,553.60 : 665,232.48 = 127,941.60 : x
  2. Step 2: Convert to fraction form
    443,553.60/665,232.48 = 127,941.60/x
  3. Step 3: Cross multiply
    443,553.60x = 665,232.48 × 127,941.60
  4. Step 4: Simplify right side
    443,553.60x = 85,110,907,863.17
  5. Step 5: Solve for x
    x = 85,110,907,863.17/443,553.60
  6. Step 6: Final answer
    x = 191,884.16

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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.