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Finding the Fourth Proportional to 189,095.80, 261,019.04 and 168,917.64

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Solution

The fourth proportional to 189,095.80, 261,019.04 and 168,917.64 is: 233,166.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,095.80 : 261,019.04 = 168,917.64 : x
  2. Step 2: Convert to fraction form
    189,095.80/261,019.04 = 168,917.64/x
  3. Step 3: Cross multiply
    189,095.80x = 261,019.04 × 168,917.64
  4. Step 4: Simplify right side
    189,095.80x = 44,090,720,231.87
  5. Step 5: Solve for x
    x = 44,090,720,231.87/189,095.80
  6. Step 6: Final answer
    x = 233,166.05

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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.