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Finding the Fourth Proportional to 235,173.63, 324,540.23 and 127,742.79

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Solution

The fourth proportional to 235,173.63, 324,540.23 and 127,742.79 is: 176,285.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,173.63 : 324,540.23 = 127,742.79 : x
  2. Step 2: Convert to fraction form
    235,173.63/324,540.23 = 127,742.79/x
  3. Step 3: Cross multiply
    235,173.63x = 324,540.23 × 127,742.79
  4. Step 4: Simplify right side
    235,173.63x = 41,457,673,808.73
  5. Step 5: Solve for x
    x = 41,457,673,808.73/235,173.63
  6. Step 6: Final answer
    x = 176,285.38

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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.