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Finding the Fourth Proportional to 122,994.19, 169,713.24 and 69,275.80

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Solution

The fourth proportional to 122,994.19, 169,713.24 and 69,275.80 is: 95,590.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,994.19 : 169,713.24 = 69,275.80 : x
  2. Step 2: Convert to fraction form
    122,994.19/169,713.24 = 69,275.80/x
  3. Step 3: Cross multiply
    122,994.19x = 169,713.24 × 69,275.80
  4. Step 4: Simplify right side
    122,994.19x = 11,757,020,471.59
  5. Step 5: Solve for x
    x = 11,757,020,471.59/122,994.19
  6. Step 6: Final answer
    x = 95,590.05

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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.