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Finding the Fourth Proportional to 326,048.30, 489,072.45 and 184,330.70

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Solution

The fourth proportional to 326,048.30, 489,072.45 and 184,330.70 is: 276,496.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,048.30 : 489,072.45 = 184,330.70 : x
  2. Step 2: Convert to fraction form
    326,048.30/489,072.45 = 184,330.70/x
  3. Step 3: Cross multiply
    326,048.30x = 489,072.45 × 184,330.70
  4. Step 4: Simplify right side
    326,048.30x = 90,151,067,059.22
  5. Step 5: Solve for x
    x = 90,151,067,059.22/326,048.30
  6. Step 6: Final answer
    x = 276,496.05

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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.