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Finding the Fourth Proportional to 54,992.60, 82,343.10 and 43,328.60

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Solution

The fourth proportional to 54,992.60, 82,343.10 and 43,328.60 is: 64,878.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,992.60 : 82,343.10 = 43,328.60 : x
  2. Step 2: Convert to fraction form
    54,992.60/82,343.10 = 43,328.60/x
  3. Step 3: Cross multiply
    54,992.60x = 82,343.10 × 43,328.60
  4. Step 4: Simplify right side
    54,992.60x = 3,567,811,242.66
  5. Step 5: Solve for x
    x = 3,567,811,242.66/54,992.60
  6. Step 6: Final answer
    x = 64,878.02

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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.