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Finding the Fourth Proportional to 189,551.39, 261,597.32 and 104,684.86

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Solution

The fourth proportional to 189,551.39, 261,597.32 and 104,684.86 is: 144,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,551.39 : 261,597.32 = 104,684.86 : x
  2. Step 2: Convert to fraction form
    189,551.39/261,597.32 = 104,684.86/x
  3. Step 3: Cross multiply
    189,551.39x = 261,597.32 × 104,684.86
  4. Step 4: Simplify right side
    189,551.39x = 27,385,277,839.66
  5. Step 5: Solve for x
    x = 27,385,277,839.66/189,551.39
  6. Step 6: Final answer
    x = 144,474.16

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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.