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Finding the Fourth Proportional to 173,261.90, 259,741.01 and 83,259.80

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Solution

The fourth proportional to 173,261.90, 259,741.01 and 83,259.80 is: 124,816.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,261.90 : 259,741.01 = 83,259.80 : x
  2. Step 2: Convert to fraction form
    173,261.90/259,741.01 = 83,259.80/x
  3. Step 3: Cross multiply
    173,261.90x = 259,741.01 × 83,259.80
  4. Step 4: Simplify right side
    173,261.90x = 21,625,983,453.84
  5. Step 5: Solve for x
    x = 21,625,983,453.84/173,261.90
  6. Step 6: Final answer
    x = 124,816.73

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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.