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Finding the Fourth Proportional to 260,994.70, 360,155.63 and 153,543.97

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Solution

The fourth proportional to 260,994.70, 360,155.63 and 153,543.97 is: 211,880.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,994.70 : 360,155.63 = 153,543.97 : x
  2. Step 2: Convert to fraction form
    260,994.70/360,155.63 = 153,543.97/x
  3. Step 3: Cross multiply
    260,994.70x = 360,155.63 × 153,543.97
  4. Step 4: Simplify right side
    260,994.70x = 55,299,723,447.27
  5. Step 5: Solve for x
    x = 55,299,723,447.27/260,994.70
  6. Step 6: Final answer
    x = 211,880.64

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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.