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Finding the Fourth Proportional to 186,992.69, 258,070.23 and 115,370.87

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Solution

The fourth proportional to 186,992.69, 258,070.23 and 115,370.87 is: 159,224.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,992.69 : 258,070.23 = 115,370.87 : x
  2. Step 2: Convert to fraction form
    186,992.69/258,070.23 = 115,370.87/x
  3. Step 3: Cross multiply
    186,992.69x = 258,070.23 × 115,370.87
  4. Step 4: Simplify right side
    186,992.69x = 29,773,785,665.85
  5. Step 5: Solve for x
    x = 29,773,785,665.85/186,992.69
  6. Step 6: Final answer
    x = 159,224.33

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1.5x scale

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.