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Finding the Fourth Proportional to 326,077.80, 489,116.70 and 184,360.20

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Solution

The fourth proportional to 326,077.80, 489,116.70 and 184,360.20 is: 276,540.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,077.80 : 489,116.70 = 184,360.20 : x
  2. Step 2: Convert to fraction form
    326,077.80/489,116.70 = 184,360.20/x
  3. Step 3: Cross multiply
    326,077.80x = 489,116.70 × 184,360.20
  4. Step 4: Simplify right side
    326,077.80x = 90,173,652,635.34
  5. Step 5: Solve for x
    x = 90,173,652,635.34/326,077.80
  6. Step 6: Final answer
    x = 276,540.30

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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.