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Finding the Fourth Proportional to 74,492.73, 102,799.98 and 40,958.73

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Solution

The fourth proportional to 74,492.73, 102,799.98 and 40,958.73 is: 56,523.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,492.73 : 102,799.98 = 40,958.73 : x
  2. Step 2: Convert to fraction form
    74,492.73/102,799.98 = 40,958.73/x
  3. Step 3: Cross multiply
    74,492.73x = 102,799.98 × 40,958.73
  4. Step 4: Simplify right side
    74,492.73x = 4,210,556,624.83
  5. Step 5: Solve for x
    x = 4,210,556,624.83/74,492.73
  6. Step 6: Final answer
    x = 56,523.05

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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.