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Finding the Fourth Proportional to 324,479.60, 486,744.60 and 114,164.72

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Solution

The fourth proportional to 324,479.60, 486,744.60 and 114,164.72 is: 171,255.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,479.60 : 486,744.60 = 114,164.72 : x
  2. Step 2: Convert to fraction form
    324,479.60/486,744.60 = 114,164.72/x
  3. Step 3: Cross multiply
    324,479.60x = 486,744.60 × 114,164.72
  4. Step 4: Simplify right side
    324,479.60x = 55,569,060,970.51
  5. Step 5: Solve for x
    x = 55,569,060,970.51/324,479.60
  6. Step 6: Final answer
    x = 171,255.95

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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.