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Finding the Fourth Proportional to 235,349.12, 324,783.76 and 127,919.12

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Solution

The fourth proportional to 235,349.12, 324,783.76 and 127,919.12 is: 176,529.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,349.12 : 324,783.76 = 127,919.12 : x
  2. Step 2: Convert to fraction form
    235,349.12/324,783.76 = 127,919.12/x
  3. Step 3: Cross multiply
    235,349.12x = 324,783.76 × 127,919.12
  4. Step 4: Simplify right side
    235,349.12x = 41,546,052,769.49
  5. Step 5: Solve for x
    x = 41,546,052,769.49/235,349.12
  6. Step 6: Final answer
    x = 176,529.46

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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.