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Finding the Fourth Proportional to 443,872.04, 665,871.24 and 144,256.28

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Solution

The fourth proportional to 443,872.04, 665,871.24 and 144,256.28 is: 216,404.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,872.04 : 665,871.24 = 144,256.28 : x
  2. Step 2: Convert to fraction form
    443,872.04/665,871.24 = 144,256.28/x
  3. Step 3: Cross multiply
    443,872.04x = 665,871.24 × 144,256.28
  4. Step 4: Simplify right side
    443,872.04x = 96,056,108,041.39
  5. Step 5: Solve for x
    x = 96,056,108,041.39/443,872.04
  6. Step 6: Final answer
    x = 216,404.95

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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.