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Finding the Fourth Proportional to 40,201.80, 60,302.70 and 25,427.40

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Solution

The fourth proportional to 40,201.80, 60,302.70 and 25,427.40 is: 38,141.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,201.80 : 60,302.70 = 25,427.40 : x
  2. Step 2: Convert to fraction form
    40,201.80/60,302.70 = 25,427.40/x
  3. Step 3: Cross multiply
    40,201.80x = 60,302.70 × 25,427.40
  4. Step 4: Simplify right side
    40,201.80x = 1,533,340,873.98
  5. Step 5: Solve for x
    x = 1,533,340,873.98/40,201.80
  6. Step 6: Final answer
    x = 38,141.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.