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Finding the Fourth Proportional to 347,857.62, 521,036.57 and 234,916.83

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Solution

The fourth proportional to 347,857.62, 521,036.57 and 234,916.83 is: 351,868.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,857.62 : 521,036.57 = 234,916.83 : x
  2. Step 2: Convert to fraction form
    347,857.62/521,036.57 = 234,916.83/x
  3. Step 3: Cross multiply
    347,857.62x = 521,036.57 × 234,916.83
  4. Step 4: Simplify right side
    347,857.62x = 122,400,258,163.89
  5. Step 5: Solve for x
    x = 122,400,258,163.89/347,857.62
  6. Step 6: Final answer
    x = 351,868.84

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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.