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Finding the Fourth Proportional to 145,649.44, 218,559.08 and 61,404.44

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Solution

The fourth proportional to 145,649.44, 218,559.08 and 61,404.44 is: 92,142.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,649.44 : 218,559.08 = 61,404.44 : x
  2. Step 2: Convert to fraction form
    145,649.44/218,559.08 = 61,404.44/x
  3. Step 3: Cross multiply
    145,649.44x = 218,559.08 × 61,404.44
  4. Step 4: Simplify right side
    145,649.44x = 13,420,497,914.32
  5. Step 5: Solve for x
    x = 13,420,497,914.32/145,649.44
  6. Step 6: Final answer
    x = 92,142.46

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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.