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Finding the Fourth Proportional to 186,996.93, 258,074.44 and 111,545.43

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Solution

The fourth proportional to 186,996.93, 258,074.44 and 111,545.43 is: 153,943.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,996.93 : 258,074.44 = 111,545.43 : x
  2. Step 2: Convert to fraction form
    186,996.93/258,074.44 = 111,545.43/x
  3. Step 3: Cross multiply
    186,996.93x = 258,074.44 × 111,545.43
  4. Step 4: Simplify right side
    186,996.93x = 28,787,023,135.17
  5. Step 5: Solve for x
    x = 28,787,023,135.17/186,996.93
  6. Step 6: Final answer
    x = 153,943.83

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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.