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Finding the Fourth Proportional to 173,238.06, 259,857.08 and 65,187.74

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Solution

The fourth proportional to 173,238.06, 259,857.08 and 65,187.74 is: 97,781.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,238.06 : 259,857.08 = 65,187.74 : x
  2. Step 2: Convert to fraction form
    173,238.06/259,857.08 = 65,187.74/x
  3. Step 3: Cross multiply
    173,238.06x = 259,857.08 × 65,187.74
  4. Step 4: Simplify right side
    173,238.06x = 16,939,495,768.20
  5. Step 5: Solve for x
    x = 16,939,495,768.20/173,238.06
  6. Step 6: Final answer
    x = 97,781.61

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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.