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Finding the Fourth Proportional to 178,747.40, 246,755.40 and 103,281.32

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Solution

The fourth proportional to 178,747.40, 246,755.40 and 103,281.32 is: 142,576.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,747.40 : 246,755.40 = 103,281.32 : x
  2. Step 2: Convert to fraction form
    178,747.40/246,755.40 = 103,281.32/x
  3. Step 3: Cross multiply
    178,747.40x = 246,755.40 × 103,281.32
  4. Step 4: Simplify right side
    178,747.40x = 25,485,223,429.13
  5. Step 5: Solve for x
    x = 25,485,223,429.13/178,747.40
  6. Step 6: Final answer
    x = 142,576.75

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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.