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Finding the Fourth Proportional to 74,310.40, 102,556.80 and 44,502.40

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Solution

The fourth proportional to 74,310.40, 102,556.80 and 44,502.40 is: 61,418.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,310.40 : 102,556.80 = 44,502.40 : x
  2. Step 2: Convert to fraction form
    74,310.40/102,556.80 = 44,502.40/x
  3. Step 3: Cross multiply
    74,310.40x = 102,556.80 × 44,502.40
  4. Step 4: Simplify right side
    74,310.40x = 4,564,023,736.32
  5. Step 5: Solve for x
    x = 4,564,023,736.32/74,310.40
  6. Step 6: Final answer
    x = 61,418.37

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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.