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Finding the Fourth Proportional to 188,581.79, 282,783.87 and 68,554.32

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Solution

The fourth proportional to 188,581.79, 282,783.87 and 68,554.32 is: 102,799.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,581.79 : 282,783.87 = 68,554.32 : x
  2. Step 2: Convert to fraction form
    188,581.79/282,783.87 = 68,554.32/x
  3. Step 3: Cross multiply
    188,581.79x = 282,783.87 × 68,554.32
  4. Step 4: Simplify right side
    188,581.79x = 19,386,055,914.82
  5. Step 5: Solve for x
    x = 19,386,055,914.82/188,581.79
  6. Step 6: Final answer
    x = 102,799.20

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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.