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Finding the Fourth Proportional to 125,141.63, 187,629.03 and 65,022.36

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Solution

The fourth proportional to 125,141.63, 187,629.03 and 65,022.36 is: 97,490.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,141.63 : 187,629.03 = 65,022.36 : x
  2. Step 2: Convert to fraction form
    125,141.63/187,629.03 = 65,022.36/x
  3. Step 3: Cross multiply
    125,141.63x = 187,629.03 × 65,022.36
  4. Step 4: Simplify right side
    125,141.63x = 12,200,082,335.11
  5. Step 5: Solve for x
    x = 12,200,082,335.11/125,141.63
  6. Step 6: Final answer
    x = 97,490.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.