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Finding the Fourth Proportional to 144,892.08, 199,955.25 and 81,230.94

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Solution

The fourth proportional to 144,892.08, 199,955.25 and 81,230.94 is: 112,101.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,892.08 : 199,955.25 = 81,230.94 : x
  2. Step 2: Convert to fraction form
    144,892.08/199,955.25 = 81,230.94/x
  3. Step 3: Cross multiply
    144,892.08x = 199,955.25 × 81,230.94
  4. Step 4: Simplify right side
    144,892.08x = 16,242,552,915.44
  5. Step 5: Solve for x
    x = 16,242,552,915.44/144,892.08
  6. Step 6: Final answer
    x = 112,101.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.