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Finding the Fourth Proportional to 186,744.51, 280,116.59 and 68,425.07

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Solution

The fourth proportional to 186,744.51, 280,116.59 and 68,425.07 is: 102,637.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,744.51 : 280,116.59 = 68,425.07 : x
  2. Step 2: Convert to fraction form
    186,744.51/280,116.59 = 68,425.07/x
  3. Step 3: Cross multiply
    186,744.51x = 280,116.59 × 68,425.07
  4. Step 4: Simplify right side
    186,744.51x = 19,166,995,536.20
  5. Step 5: Solve for x
    x = 19,166,995,536.20/186,744.51
  6. Step 6: Final answer
    x = 102,637.53

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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.