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Finding the Fourth Proportional to 443,829.72, 665,772.60 and 187,614.51

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Solution

The fourth proportional to 443,829.72, 665,772.60 and 187,614.51 is: 281,433.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,829.72 : 665,772.60 = 187,614.51 : x
  2. Step 2: Convert to fraction form
    443,829.72/665,772.60 = 187,614.51/x
  3. Step 3: Cross multiply
    443,829.72x = 665,772.60 × 187,614.51
  4. Step 4: Simplify right side
    443,829.72x = 124,908,595,853.49
  5. Step 5: Solve for x
    x = 124,908,595,853.49/443,829.72
  6. Step 6: Final answer
    x = 281,433.60

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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.