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Finding the Fourth Proportional to 189,073.98, 260,921.57 and 104,191.02

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Solution

The fourth proportional to 189,073.98, 260,921.57 and 104,191.02 is: 143,783.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,073.98 : 260,921.57 = 104,191.02 : x
  2. Step 2: Convert to fraction form
    189,073.98/260,921.57 = 104,191.02/x
  3. Step 3: Cross multiply
    189,073.98x = 260,921.57 × 104,191.02
  4. Step 4: Simplify right side
    189,073.98x = 27,185,683,997.35
  5. Step 5: Solve for x
    x = 27,185,683,997.35/189,073.98
  6. Step 6: Final answer
    x = 143,783.32

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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.