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Finding the Fourth Proportional to 173,429.90, 259,987.08 and 66,745.82

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Solution

The fourth proportional to 173,429.90, 259,987.08 and 66,745.82 is: 100,058.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,429.90 : 259,987.08 = 66,745.82 : x
  2. Step 2: Convert to fraction form
    173,429.90/259,987.08 = 66,745.82/x
  3. Step 3: Cross multiply
    173,429.90x = 259,987.08 × 66,745.82
  4. Step 4: Simplify right side
    173,429.90x = 17,353,050,844.01
  5. Step 5: Solve for x
    x = 17,353,050,844.01/173,429.90
  6. Step 6: Final answer
    x = 100,058.01

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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.