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Finding the Fourth Proportional to 148,106.48, 221,880.72 and 73,138.88

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Solution

The fourth proportional to 148,106.48, 221,880.72 and 73,138.88 is: 109,570.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,106.48 : 221,880.72 = 73,138.88 : x
  2. Step 2: Convert to fraction form
    148,106.48/221,880.72 = 73,138.88/x
  3. Step 3: Cross multiply
    148,106.48x = 221,880.72 × 73,138.88
  4. Step 4: Simplify right side
    148,106.48x = 16,228,107,354.39
  5. Step 5: Solve for x
    x = 16,228,107,354.39/148,106.48
  6. Step 6: Final answer
    x = 109,570.54

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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.