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Finding the Fourth Proportional to 59,041.63, 81,431.37 and 40,899.20

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Solution

The fourth proportional to 59,041.63, 81,431.37 and 40,899.20 is: 56,408.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,041.63 : 81,431.37 = 40,899.20 : x
  2. Step 2: Convert to fraction form
    59,041.63/81,431.37 = 40,899.20/x
  3. Step 3: Cross multiply
    59,041.63x = 81,431.37 × 40,899.20
  4. Step 4: Simplify right side
    59,041.63x = 3,330,478,014.80
  5. Step 5: Solve for x
    x = 3,330,478,014.80/59,041.63
  6. Step 6: Final answer
    x = 56,408.98

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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.