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Finding the Fourth Proportional to 172,066, 237,348.12 and 108,293.08

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Solution

The fourth proportional to 172,066, 237,348.12 and 108,293.08 is: 149,379.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,066 : 237,348.12 = 108,293.08 : x
  2. Step 2: Convert to fraction form
    172,066/237,348.12 = 108,293.08/x
  3. Step 3: Cross multiply
    172,066x = 237,348.12 × 108,293.08
  4. Step 4: Simplify right side
    172,066x = 25,703,158,947.01
  5. Step 5: Solve for x
    x = 25,703,158,947.01/172,066
  6. Step 6: Final answer
    x = 149,379.65

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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.