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Finding the Fourth Proportional to 293,090.45, 439,405.99 and 115,730.22

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Solution

The fourth proportional to 293,090.45, 439,405.99 and 115,730.22 is: 173,504.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,090.45 : 439,405.99 = 115,730.22 : x
  2. Step 2: Convert to fraction form
    293,090.45/439,405.99 = 115,730.22/x
  3. Step 3: Cross multiply
    293,090.45x = 439,405.99 × 115,730.22
  4. Step 4: Simplify right side
    293,090.45x = 50,852,551,892.02
  5. Step 5: Solve for x
    x = 50,852,551,892.02/293,090.45
  6. Step 6: Final answer
    x = 173,504.64

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.