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Finding the Fourth Proportional to 235,309.18, 324,728.72 and 127,879.19

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Solution

The fourth proportional to 235,309.18, 324,728.72 and 127,879.19 is: 176,474.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,309.18 : 324,728.72 = 127,879.19 : x
  2. Step 2: Convert to fraction form
    235,309.18/324,728.72 = 127,879.19/x
  3. Step 3: Cross multiply
    235,309.18x = 324,728.72 × 127,879.19
  4. Step 4: Simplify right side
    235,309.18x = 41,526,045,683.34
  5. Step 5: Solve for x
    x = 41,526,045,683.34/235,309.18
  6. Step 6: Final answer
    x = 176,474.40

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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.