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Finding the Fourth Proportional to 273,268.80, 377,120.32 and 158,538.76

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Solution

The fourth proportional to 273,268.80, 377,120.32 and 158,538.76 is: 218,788.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,268.80 : 377,120.32 = 158,538.76 : x
  2. Step 2: Convert to fraction form
    273,268.80/377,120.32 = 158,538.76/x
  3. Step 3: Cross multiply
    273,268.80x = 377,120.32 × 158,538.76
  4. Step 4: Simplify right side
    273,268.80x = 59,788,187,903.60
  5. Step 5: Solve for x
    x = 59,788,187,903.60/273,268.80
  6. Step 6: Final answer
    x = 218,788.93

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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.