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Finding the Fourth Proportional to 74,458.39, 102,753.38 and 40,466.88

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Solution

The fourth proportional to 74,458.39, 102,753.38 and 40,466.88 is: 55,844.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,458.39 : 102,753.38 = 40,466.88 : x
  2. Step 2: Convert to fraction form
    74,458.39/102,753.38 = 40,466.88/x
  3. Step 3: Cross multiply
    74,458.39x = 102,753.38 × 40,466.88
  4. Step 4: Simplify right side
    74,458.39x = 4,158,108,698.05
  5. Step 5: Solve for x
    x = 4,158,108,698.05/74,458.39
  6. Step 6: Final answer
    x = 55,844.73

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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.