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Finding the Fourth Proportional to 173,115.80, 259,708.80 and 98,271.80

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Solution

The fourth proportional to 173,115.80, 259,708.80 and 98,271.80 is: 147,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,115.80 : 259,708.80 = 98,271.80 : x
  2. Step 2: Convert to fraction form
    173,115.80/259,708.80 = 98,271.80/x
  3. Step 3: Cross multiply
    173,115.80x = 259,708.80 × 98,271.80
  4. Step 4: Simplify right side
    173,115.80x = 25,522,051,251.84
  5. Step 5: Solve for x
    x = 25,522,051,251.84/173,115.80
  6. Step 6: Final answer
    x = 147,427.63

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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.