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Finding the Fourth Proportional to 223,796.32, 308,769.36 and 126,984.16

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Solution

The fourth proportional to 223,796.32, 308,769.36 and 126,984.16 is: 175,198.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,796.32 : 308,769.36 = 126,984.16 : x
  2. Step 2: Convert to fraction form
    223,796.32/308,769.36 = 126,984.16/x
  3. Step 3: Cross multiply
    223,796.32x = 308,769.36 × 126,984.16
  4. Step 4: Simplify right side
    223,796.32x = 39,208,817,813.34
  5. Step 5: Solve for x
    x = 39,208,817,813.34/223,796.32
  6. Step 6: Final answer
    x = 175,198.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.