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Finding the Fourth Proportional to 73,380.21, 101,259.86 and 40,672.46

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Solution

The fourth proportional to 73,380.21, 101,259.86 and 40,672.46 is: 56,125.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,380.21 : 101,259.86 = 40,672.46 : x
  2. Step 2: Convert to fraction form
    73,380.21/101,259.86 = 40,672.46/x
  3. Step 3: Cross multiply
    73,380.21x = 101,259.86 × 40,672.46
  4. Step 4: Simplify right side
    73,380.21x = 4,118,486,895.79
  5. Step 5: Solve for x
    x = 4,118,486,895.79/73,380.21
  6. Step 6: Final answer
    x = 56,125.31

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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.