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Finding the Fourth Proportional to 169,300.98, 233,939.88 and 121,470.48

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Solution

The fourth proportional to 169,300.98, 233,939.88 and 121,470.48 is: 167,847.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,300.98 : 233,939.88 = 121,470.48 : x
  2. Step 2: Convert to fraction form
    169,300.98/233,939.88 = 121,470.48/x
  3. Step 3: Cross multiply
    169,300.98x = 233,939.88 × 121,470.48
  4. Step 4: Simplify right side
    169,300.98x = 28,416,789,514.74
  5. Step 5: Solve for x
    x = 28,416,789,514.74/169,300.98
  6. Step 6: Final answer
    x = 167,847.76

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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.