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Finding the Fourth Proportional to 187,362.58, 258,508.29 and 111,883.54

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Solution

The fourth proportional to 187,362.58, 258,508.29 and 111,883.54 is: 154,368.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,362.58 : 258,508.29 = 111,883.54 : x
  2. Step 2: Convert to fraction form
    187,362.58/258,508.29 = 111,883.54/x
  3. Step 3: Cross multiply
    187,362.58x = 258,508.29 × 111,883.54
  4. Step 4: Simplify right side
    187,362.58x = 28,922,822,604.55
  5. Step 5: Solve for x
    x = 28,922,822,604.55/187,362.58
  6. Step 6: Final answer
    x = 154,368.19

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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.