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Finding the Fourth Proportional to 109,900.80, 164,851.20 and 43,304.67

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Solution

The fourth proportional to 109,900.80, 164,851.20 and 43,304.67 is: 64,957.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,900.80 : 164,851.20 = 43,304.67 : x
  2. Step 2: Convert to fraction form
    109,900.80/164,851.20 = 43,304.67/x
  3. Step 3: Cross multiply
    109,900.80x = 164,851.20 × 43,304.67
  4. Step 4: Simplify right side
    109,900.80x = 7,138,826,815.10
  5. Step 5: Solve for x
    x = 7,138,826,815.10/109,900.80
  6. Step 6: Final answer
    x = 64,957.01

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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.