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Finding the Fourth Proportional to 229,628.30, 343,828.05 and 146,069.90

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Solution

The fourth proportional to 229,628.30, 343,828.05 and 146,069.90 is: 218,714.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,628.30 : 343,828.05 = 146,069.90 : x
  2. Step 2: Convert to fraction form
    229,628.30/343,828.05 = 146,069.90/x
  3. Step 3: Cross multiply
    229,628.30x = 343,828.05 × 146,069.90
  4. Step 4: Simplify right side
    229,628.30x = 50,222,928,880.70
  5. Step 5: Solve for x
    x = 50,222,928,880.70/229,628.30
  6. Step 6: Final answer
    x = 218,714.02

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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.