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Finding the Fourth Proportional to 227,628.80, 341,340.80 and 87,340.80

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Solution

The fourth proportional to 227,628.80, 341,340.80 and 87,340.80 is: 130,971.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,628.80 : 341,340.80 = 87,340.80 : x
  2. Step 2: Convert to fraction form
    227,628.80/341,340.80 = 87,340.80/x
  3. Step 3: Cross multiply
    227,628.80x = 341,340.80 × 87,340.80
  4. Step 4: Simplify right side
    227,628.80x = 29,812,978,544.64
  5. Step 5: Solve for x
    x = 29,812,978,544.64/227,628.80
  6. Step 6: Final answer
    x = 130,971.91

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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.