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Finding the Fourth Proportional to 343,684.88, 515,674.20 and 186,025.04

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Solution

The fourth proportional to 343,684.88, 515,674.20 and 186,025.04 is: 279,117.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,684.88 : 515,674.20 = 186,025.04 : x
  2. Step 2: Convert to fraction form
    343,684.88/515,674.20 = 186,025.04/x
  3. Step 3: Cross multiply
    343,684.88x = 515,674.20 × 186,025.04
  4. Step 4: Simplify right side
    343,684.88x = 95,928,313,681.97
  5. Step 5: Solve for x
    x = 95,928,313,681.97/343,684.88
  6. Step 6: Final answer
    x = 279,117.06

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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.