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Finding the Fourth Proportional to 173,254.60, 259,972.98 and 122,978.08

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Solution

The fourth proportional to 173,254.60, 259,972.98 and 122,978.08 is: 184,531.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,254.60 : 259,972.98 = 122,978.08 : x
  2. Step 2: Convert to fraction form
    173,254.60/259,972.98 = 122,978.08/x
  3. Step 3: Cross multiply
    173,254.60x = 259,972.98 × 122,978.08
  4. Step 4: Simplify right side
    173,254.60x = 31,970,977,932.28
  5. Step 5: Solve for x
    x = 31,970,977,932.28/173,254.60
  6. Step 6: Final answer
    x = 184,531.77

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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.