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Finding the Fourth Proportional to 164,800.30, 246,872.40 and 85,958.95

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Solution

The fourth proportional to 164,800.30, 246,872.40 and 85,958.95 is: 128,767.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,800.30 : 246,872.40 = 85,958.95 : x
  2. Step 2: Convert to fraction form
    164,800.30/246,872.40 = 85,958.95/x
  3. Step 3: Cross multiply
    164,800.30x = 246,872.40 × 85,958.95
  4. Step 4: Simplify right side
    164,800.30x = 21,220,892,287.98
  5. Step 5: Solve for x
    x = 21,220,892,287.98/164,800.30
  6. Step 6: Final answer
    x = 128,767.32

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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.