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Finding the Fourth Proportional to 74,471.32, 102,770.41 and 40,937.32

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Solution

The fourth proportional to 74,471.32, 102,770.41 and 40,937.32 is: 56,493.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,471.32 : 102,770.41 = 40,937.32 : x
  2. Step 2: Convert to fraction form
    74,471.32/102,770.41 = 40,937.32/x
  3. Step 3: Cross multiply
    74,471.32x = 102,770.41 × 40,937.32
  4. Step 4: Simplify right side
    74,471.32x = 4,207,145,160.70
  5. Step 5: Solve for x
    x = 4,207,145,160.70/74,471.32
  6. Step 6: Final answer
    x = 56,493.50

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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.