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Finding the Fourth Proportional to 192,386.08, 265,485 and 111,813.04

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Solution

The fourth proportional to 192,386.08, 265,485 and 111,813.04 is: 154,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,386.08 : 265,485 = 111,813.04 : x
  2. Step 2: Convert to fraction form
    192,386.08/265,485 = 111,813.04/x
  3. Step 3: Cross multiply
    192,386.08x = 265,485 × 111,813.04
  4. Step 4: Simplify right side
    192,386.08x = 29,684,684,924.40
  5. Step 5: Solve for x
    x = 29,684,684,924.40/192,386.08
  6. Step 6: Final answer
    x = 154,297.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.