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Finding the Fourth Proportional to 443,817.80, 665,748.30 and 123,969.32

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Solution

The fourth proportional to 443,817.80, 665,748.30 and 123,969.32 is: 185,960.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,817.80 : 665,748.30 = 123,969.32 : x
  2. Step 2: Convert to fraction form
    443,817.80/665,748.30 = 123,969.32/x
  3. Step 3: Cross multiply
    443,817.80x = 665,748.30 × 123,969.32
  4. Step 4: Simplify right side
    443,817.80x = 82,532,364,042.16
  5. Step 5: Solve for x
    x = 82,532,364,042.16/443,817.80
  6. Step 6: Final answer
    x = 185,960.01

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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.