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Finding the Fourth Proportional to 189,090.39, 260,939.93 and 103,051.58

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Solution

The fourth proportional to 189,090.39, 260,939.93 and 103,051.58 is: 142,208.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,090.39 : 260,939.93 = 103,051.58 : x
  2. Step 2: Convert to fraction form
    189,090.39/260,939.93 = 103,051.58/x
  3. Step 3: Cross multiply
    189,090.39x = 260,939.93 × 103,051.58
  4. Step 4: Simplify right side
    189,090.39x = 26,890,272,208.68
  5. Step 5: Solve for x
    x = 26,890,272,208.68/189,090.39
  6. Step 6: Final answer
    x = 142,208.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.