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Finding the Fourth Proportional to 346,469.87, 519,704.81 and 109,812.54

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Solution

The fourth proportional to 346,469.87, 519,704.81 and 109,812.54 is: 164,718.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,469.87 : 519,704.81 = 109,812.54 : x
  2. Step 2: Convert to fraction form
    346,469.87/519,704.81 = 109,812.54/x
  3. Step 3: Cross multiply
    346,469.87x = 519,704.81 × 109,812.54
  4. Step 4: Simplify right side
    346,469.87x = 57,070,107,047.94
  5. Step 5: Solve for x
    x = 57,070,107,047.94/346,469.87
  6. Step 6: Final answer
    x = 164,718.82

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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.