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Finding the Fourth Proportional to 104,797.30, 144,623.47 and 74,225.20

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Solution

The fourth proportional to 104,797.30, 144,623.47 and 74,225.20 is: 102,433.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,797.30 : 144,623.47 = 74,225.20 : x
  2. Step 2: Convert to fraction form
    104,797.30/144,623.47 = 74,225.20/x
  3. Step 3: Cross multiply
    104,797.30x = 144,623.47 × 74,225.20
  4. Step 4: Simplify right side
    104,797.30x = 10,734,705,985.44
  5. Step 5: Solve for x
    x = 10,734,705,985.44/104,797.30
  6. Step 6: Final answer
    x = 102,433.04

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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.