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Finding the Fourth Proportional to 189,001.53, 260,822.57 and 104,120.01

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Solution

The fourth proportional to 189,001.53, 260,822.57 and 104,120.01 is: 143,685.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,001.53 : 260,822.57 = 104,120.01 : x
  2. Step 2: Convert to fraction form
    189,001.53/260,822.57 = 104,120.01/x
  3. Step 3: Cross multiply
    189,001.53x = 260,822.57 × 104,120.01
  4. Step 4: Simplify right side
    189,001.53x = 27,156,848,076.03
  5. Step 5: Solve for x
    x = 27,156,848,076.03/189,001.53
  6. Step 6: Final answer
    x = 143,685.86

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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.