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Finding the Fourth Proportional to 70,544.78, 97,351.74 and 40,330.78

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Solution

The fourth proportional to 70,544.78, 97,351.74 and 40,330.78 is: 55,656.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,544.78 : 97,351.74 = 40,330.78 : x
  2. Step 2: Convert to fraction form
    70,544.78/97,351.74 = 40,330.78/x
  3. Step 3: Cross multiply
    70,544.78x = 97,351.74 × 40,330.78
  4. Step 4: Simplify right side
    70,544.78x = 3,926,271,608.56
  5. Step 5: Solve for x
    x = 3,926,271,608.56/70,544.78
  6. Step 6: Final answer
    x = 55,656.44

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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.