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Finding the Fourth Proportional to 217,042.40, 325,520.40 and 104,722.40

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Solution

The fourth proportional to 217,042.40, 325,520.40 and 104,722.40 is: 157,062.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,042.40 : 325,520.40 = 104,722.40 : x
  2. Step 2: Convert to fraction form
    217,042.40/325,520.40 = 104,722.40/x
  3. Step 3: Cross multiply
    217,042.40x = 325,520.40 × 104,722.40
  4. Step 4: Simplify right side
    217,042.40x = 34,089,277,536.96
  5. Step 5: Solve for x
    x = 34,089,277,536.96/217,042.40
  6. Step 6: Final answer
    x = 157,062.76

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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.