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Finding the Fourth Proportional to 146,994.80, 220,492.20 and 112,002.80

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Solution

The fourth proportional to 146,994.80, 220,492.20 and 112,002.80 is: 168,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,994.80 : 220,492.20 = 112,002.80 : x
  2. Step 2: Convert to fraction form
    146,994.80/220,492.20 = 112,002.80/x
  3. Step 3: Cross multiply
    146,994.80x = 220,492.20 × 112,002.80
  4. Step 4: Simplify right side
    146,994.80x = 24,695,743,778.16
  5. Step 5: Solve for x
    x = 24,695,743,778.16/146,994.80
  6. Step 6: Final answer
    x = 168,004.20

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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.