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Finding the Fourth Proportional to 328,544.15, 492,816.27 and 115,479.32

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Solution

The fourth proportional to 328,544.15, 492,816.27 and 115,479.32 is: 173,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,544.15 : 492,816.27 = 115,479.32 : x
  2. Step 2: Convert to fraction form
    328,544.15/492,816.27 = 115,479.32/x
  3. Step 3: Cross multiply
    328,544.15x = 492,816.27 × 115,479.32
  4. Step 4: Simplify right side
    328,544.15x = 56,910,087,744.54
  5. Step 5: Solve for x
    x = 56,910,087,744.54/328,544.15
  6. Step 6: Final answer
    x = 173,219.00

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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.