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Finding the Fourth Proportional to 171,303.62, 256,993.20 and 51,355.79

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Solution

The fourth proportional to 171,303.62, 256,993.20 and 51,355.79 is: 77,045.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,303.62 : 256,993.20 = 51,355.79 : x
  2. Step 2: Convert to fraction form
    171,303.62/256,993.20 = 51,355.79/x
  3. Step 3: Cross multiply
    171,303.62x = 256,993.20 × 51,355.79
  4. Step 4: Simplify right side
    171,303.62x = 13,198,087,525.66
  5. Step 5: Solve for x
    x = 13,198,087,525.66/171,303.62
  6. Step 6: Final answer
    x = 77,045.00

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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.