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Finding the Fourth Proportional to 173,063.20, 259,643.40 and 73,271.20

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Solution

The fourth proportional to 173,063.20, 259,643.40 and 73,271.20 is: 109,927.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,063.20 : 259,643.40 = 73,271.20 : x
  2. Step 2: Convert to fraction form
    173,063.20/259,643.40 = 73,271.20/x
  3. Step 3: Cross multiply
    173,063.20x = 259,643.40 × 73,271.20
  4. Step 4: Simplify right side
    173,063.20x = 19,024,383,490.08
  5. Step 5: Solve for x
    x = 19,024,383,490.08/173,063.20
  6. Step 6: Final answer
    x = 109,927.38

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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.