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Finding the Fourth Proportional to 125,935.68, 188,969.04 and 55,798.50

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Solution

The fourth proportional to 125,935.68, 188,969.04 and 55,798.50 is: 83,726.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,935.68 : 188,969.04 = 55,798.50 : x
  2. Step 2: Convert to fraction form
    125,935.68/188,969.04 = 55,798.50/x
  3. Step 3: Cross multiply
    125,935.68x = 188,969.04 × 55,798.50
  4. Step 4: Simplify right side
    125,935.68x = 10,544,188,978.44
  5. Step 5: Solve for x
    x = 10,544,188,978.44/125,935.68
  6. Step 6: Final answer
    x = 83,726.78

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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.