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Finding the Fourth Proportional to 70,234.70, 96,896.79 and 43,330.55

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Solution

The fourth proportional to 70,234.70, 96,896.79 and 43,330.55 is: 59,779.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,234.70 : 96,896.79 = 43,330.55 : x
  2. Step 2: Convert to fraction form
    70,234.70/96,896.79 = 43,330.55/x
  3. Step 3: Cross multiply
    70,234.70x = 96,896.79 × 43,330.55
  4. Step 4: Simplify right side
    70,234.70x = 4,198,590,719.45
  5. Step 5: Solve for x
    x = 4,198,590,719.45/70,234.70
  6. Step 6: Final answer
    x = 59,779.44

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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.