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Finding the Fourth Proportional to 228,770.56, 343,171.92 and 70,978.24

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Solution

The fourth proportional to 228,770.56, 343,171.92 and 70,978.24 is: 106,472.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,770.56 : 343,171.92 = 70,978.24 : x
  2. Step 2: Convert to fraction form
    228,770.56/343,171.92 = 70,978.24/x
  3. Step 3: Cross multiply
    228,770.56x = 343,171.92 × 70,978.24
  4. Step 4: Simplify right side
    228,770.56x = 24,357,738,899.02
  5. Step 5: Solve for x
    x = 24,357,738,899.02/228,770.56
  6. Step 6: Final answer
    x = 106,472.35

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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.