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Finding the Fourth Proportional to 74,493.23, 102,800.67 and 40,959.23

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Solution

The fourth proportional to 74,493.23, 102,800.67 and 40,959.23 is: 56,523.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,493.23 : 102,800.67 = 40,959.23 : x
  2. Step 2: Convert to fraction form
    74,493.23/102,800.67 = 40,959.23/x
  3. Step 3: Cross multiply
    74,493.23x = 102,800.67 × 40,959.23
  4. Step 4: Simplify right side
    74,493.23x = 4,210,636,286.68
  5. Step 5: Solve for x
    x = 4,210,636,286.68/74,493.23
  6. Step 6: Final answer
    x = 56,523.74

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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.