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Finding the Fourth Proportional to 164,328.60, 246,322.80 and 89,290.20

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Solution

The fourth proportional to 164,328.60, 246,322.80 and 89,290.20 is: 133,842.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,328.60 : 246,322.80 = 89,290.20 : x
  2. Step 2: Convert to fraction form
    164,328.60/246,322.80 = 89,290.20/x
  3. Step 3: Cross multiply
    164,328.60x = 246,322.80 × 89,290.20
  4. Step 4: Simplify right side
    164,328.60x = 21,994,212,076.56
  5. Step 5: Solve for x
    x = 21,994,212,076.56/164,328.60
  6. Step 6: Final answer
    x = 133,842.87

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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.