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Finding the Fourth Proportional to 125,178.69, 186,857.46 and 115,927.68

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Solution

The fourth proportional to 125,178.69, 186,857.46 and 115,927.68 is: 173,048.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,178.69 : 186,857.46 = 115,927.68 : x
  2. Step 2: Convert to fraction form
    125,178.69/186,857.46 = 115,927.68/x
  3. Step 3: Cross multiply
    125,178.69x = 186,857.46 × 115,927.68
  4. Step 4: Simplify right side
    125,178.69x = 21,661,952,295.64
  5. Step 5: Solve for x
    x = 21,661,952,295.64/125,178.69
  6. Step 6: Final answer
    x = 173,048.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.