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Finding the Fourth Proportional to 425,307.43, 637,939.94 and 159,048.37

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Solution

The fourth proportional to 425,307.43, 637,939.94 and 159,048.37 is: 238,564.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,307.43 : 637,939.94 = 159,048.37 : x
  2. Step 2: Convert to fraction form
    425,307.43/637,939.94 = 159,048.37/x
  3. Step 3: Cross multiply
    425,307.43x = 637,939.94 × 159,048.37
  4. Step 4: Simplify right side
    425,307.43x = 101,463,307,614.90
  5. Step 5: Solve for x
    x = 101,463,307,614.90/425,307.43
  6. Step 6: Final answer
    x = 238,564.63

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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.