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Finding the Fourth Proportional to 189,129.08, 260,995.02 and 104,254.04

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Solution

The fourth proportional to 189,129.08, 260,995.02 and 104,254.04 is: 143,868.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,129.08 : 260,995.02 = 104,254.04 : x
  2. Step 2: Convert to fraction form
    189,129.08/260,995.02 = 104,254.04/x
  3. Step 3: Cross multiply
    189,129.08x = 260,995.02 × 104,254.04
  4. Step 4: Simplify right side
    189,129.08x = 27,209,785,254.88
  5. Step 5: Solve for x
    x = 27,209,785,254.88/189,129.08
  6. Step 6: Final answer
    x = 143,868.86

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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.