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Finding the Fourth Proportional to 313,818.89, 470,731.62 and 124,325.38

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Solution

The fourth proportional to 313,818.89, 470,731.62 and 124,325.38 is: 186,489.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,818.89 : 470,731.62 = 124,325.38 : x
  2. Step 2: Convert to fraction form
    313,818.89/470,731.62 = 124,325.38/x
  3. Step 3: Cross multiply
    313,818.89x = 470,731.62 × 124,325.38
  4. Step 4: Simplify right side
    313,818.89x = 58,523,885,180.86
  5. Step 5: Solve for x
    x = 58,523,885,180.86/313,818.89
  6. Step 6: Final answer
    x = 186,489.36

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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.