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Finding the Fourth Proportional to 368,518.44, 552,881.34 and 131,894.76

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Solution

The fourth proportional to 368,518.44, 552,881.34 and 131,894.76 is: 197,879.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,518.44 : 552,881.34 = 131,894.76 : x
  2. Step 2: Convert to fraction form
    368,518.44/552,881.34 = 131,894.76/x
  3. Step 3: Cross multiply
    368,518.44x = 552,881.34 × 131,894.76
  4. Step 4: Simplify right side
    368,518.44x = 72,922,151,647.78
  5. Step 5: Solve for x
    x = 72,922,151,647.78/368,518.44
  6. Step 6: Final answer
    x = 197,879.25

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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.