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Finding the Fourth Proportional to 313,671.78, 470,243.15 and 136,045.01

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Solution

The fourth proportional to 313,671.78, 470,243.15 and 136,045.01 is: 203,952.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,671.78 : 470,243.15 = 136,045.01 : x
  2. Step 2: Convert to fraction form
    313,671.78/470,243.15 = 136,045.01/x
  3. Step 3: Cross multiply
    313,671.78x = 470,243.15 × 136,045.01
  4. Step 4: Simplify right side
    313,671.78x = 63,974,234,044.18
  5. Step 5: Solve for x
    x = 63,974,234,044.18/313,671.78
  6. Step 6: Final answer
    x = 203,952.79

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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.