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Finding the Fourth Proportional to 125,203.77, 187,817.27 and 40,964.45

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Solution

The fourth proportional to 125,203.77, 187,817.27 and 40,964.45 is: 61,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,203.77 : 187,817.27 = 40,964.45 : x
  2. Step 2: Convert to fraction form
    125,203.77/187,817.27 = 40,964.45/x
  3. Step 3: Cross multiply
    125,203.77x = 187,817.27 × 40,964.45
  4. Step 4: Simplify right side
    125,203.77x = 7,693,830,022.14
  5. Step 5: Solve for x
    x = 7,693,830,022.14/125,203.77
  6. Step 6: Final answer
    x = 61,450.47

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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.