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Finding the Fourth Proportional to 56,493.40, 84,740.10 and 43,371.40

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Solution

The fourth proportional to 56,493.40, 84,740.10 and 43,371.40 is: 65,057.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,493.40 : 84,740.10 = 43,371.40 : x
  2. Step 2: Convert to fraction form
    56,493.40/84,740.10 = 43,371.40/x
  3. Step 3: Cross multiply
    56,493.40x = 84,740.10 × 43,371.40
  4. Step 4: Simplify right side
    56,493.40x = 3,675,296,773.14
  5. Step 5: Solve for x
    x = 3,675,296,773.14/56,493.40
  6. Step 6: Final answer
    x = 65,057.10

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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.