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Finding the Fourth Proportional to 193,323.70, 290,059.46 and 109,178.88

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Solution

The fourth proportional to 193,323.70, 290,059.46 and 109,178.88 is: 163,810.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,323.70 : 290,059.46 = 109,178.88 : x
  2. Step 2: Convert to fraction form
    193,323.70/290,059.46 = 109,178.88/x
  3. Step 3: Cross multiply
    193,323.70x = 290,059.46 × 109,178.88
  4. Step 4: Simplify right side
    193,323.70x = 31,668,366,976.20
  5. Step 5: Solve for x
    x = 31,668,366,976.20/193,323.70
  6. Step 6: Final answer
    x = 163,810.06

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1.5x scale

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.