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Finding the Fourth Proportional to 187,955.48, 281,925.47 and 68,015.30

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Solution

The fourth proportional to 187,955.48, 281,925.47 and 68,015.30 is: 102,020.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,955.48 : 281,925.47 = 68,015.30 : x
  2. Step 2: Convert to fraction form
    187,955.48/281,925.47 = 68,015.30/x
  3. Step 3: Cross multiply
    187,955.48x = 281,925.47 × 68,015.30
  4. Step 4: Simplify right side
    187,955.48x = 19,175,244,180.10
  5. Step 5: Solve for x
    x = 19,175,244,180.10/187,955.48
  6. Step 6: Final answer
    x = 102,020.14

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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.