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Finding the Fourth Proportional to 73,828.90, 110,743.35 and 70,912.90

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Solution

The fourth proportional to 73,828.90, 110,743.35 and 70,912.90 is: 106,369.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,828.90 : 110,743.35 = 70,912.90 : x
  2. Step 2: Convert to fraction form
    73,828.90/110,743.35 = 70,912.90/x
  3. Step 3: Cross multiply
    73,828.90x = 110,743.35 × 70,912.90
  4. Step 4: Simplify right side
    73,828.90x = 7,853,132,104.22
  5. Step 5: Solve for x
    x = 7,853,132,104.22/73,828.90
  6. Step 6: Final answer
    x = 106,369.35

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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.