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Finding the Fourth Proportional to 148,980.99, 223,401.17 and 54,145.11

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Solution

The fourth proportional to 148,980.99, 223,401.17 and 54,145.11 is: 81,192.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,980.99 : 223,401.17 = 54,145.11 : x
  2. Step 2: Convert to fraction form
    148,980.99/223,401.17 = 54,145.11/x
  3. Step 3: Cross multiply
    148,980.99x = 223,401.17 × 54,145.11
  4. Step 4: Simplify right side
    148,980.99x = 12,096,080,653.05
  5. Step 5: Solve for x
    x = 12,096,080,653.05/148,980.99
  6. Step 6: Final answer
    x = 81,192.11

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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.