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Finding the Fourth Proportional to 619,424.65, 929,037.60 and 170,040.60

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Solution

The fourth proportional to 619,424.65, 929,037.60 and 170,040.60 is: 255,033.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,424.65 : 929,037.60 = 170,040.60 : x
  2. Step 2: Convert to fraction form
    619,424.65/929,037.60 = 170,040.60/x
  3. Step 3: Cross multiply
    619,424.65x = 929,037.60 × 170,040.60
  4. Step 4: Simplify right side
    619,424.65x = 157,974,110,926.56
  5. Step 5: Solve for x
    x = 157,974,110,926.56/619,424.65
  6. Step 6: Final answer
    x = 255,033.62

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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.