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Finding the Fourth Proportional to 70,968.06, 106,239.42 and 68,444.58

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Solution

The fourth proportional to 70,968.06, 106,239.42 and 68,444.58 is: 102,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,968.06 : 106,239.42 = 68,444.58 : x
  2. Step 2: Convert to fraction form
    70,968.06/106,239.42 = 68,444.58/x
  3. Step 3: Cross multiply
    70,968.06x = 106,239.42 × 68,444.58
  4. Step 4: Simplify right side
    70,968.06x = 7,271,512,481.34
  5. Step 5: Solve for x
    x = 7,271,512,481.34/70,968.06
  6. Step 6: Final answer
    x = 102,461.76

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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.