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Finding the Fourth Proportional to 178,868.81, 246,838.15 and 102,387.48

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Solution

The fourth proportional to 178,868.81, 246,838.15 and 102,387.48 is: 141,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,868.81 : 246,838.15 = 102,387.48 : x
  2. Step 2: Convert to fraction form
    178,868.81/246,838.15 = 102,387.48/x
  3. Step 3: Cross multiply
    178,868.81x = 246,838.15 × 102,387.48
  4. Step 4: Simplify right side
    178,868.81x = 25,273,135,958.10
  5. Step 5: Solve for x
    x = 25,273,135,958.10/178,868.81
  6. Step 6: Final answer
    x = 141,294.26

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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.