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Finding the Fourth Proportional to 321,546.60, 482,047.74 and 121,756.86

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Solution

The fourth proportional to 321,546.60, 482,047.74 and 121,756.86 is: 182,532.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,546.60 : 482,047.74 = 121,756.86 : x
  2. Step 2: Convert to fraction form
    321,546.60/482,047.74 = 121,756.86/x
  3. Step 3: Cross multiply
    321,546.60x = 482,047.74 × 121,756.86
  4. Step 4: Simplify right side
    321,546.60x = 58,692,619,192.50
  5. Step 5: Solve for x
    x = 58,692,619,192.50/321,546.60
  6. Step 6: Final answer
    x = 182,532.23

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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.