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Finding the Fourth Proportional to 260,832.76, 359,942.29 and 153,409.37

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Solution

The fourth proportional to 260,832.76, 359,942.29 and 153,409.37 is: 211,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,832.76 : 359,942.29 = 153,409.37 : x
  2. Step 2: Convert to fraction form
    260,832.76/359,942.29 = 153,409.37/x
  3. Step 3: Cross multiply
    260,832.76x = 359,942.29 × 153,409.37
  4. Step 4: Simplify right side
    260,832.76x = 55,218,517,762.02
  5. Step 5: Solve for x
    x = 55,218,517,762.02/260,832.76
  6. Step 6: Final answer
    x = 211,700.85

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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.