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Finding the Fourth Proportional to 178,003.36, 245,644.71 and 97,431.29

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Solution

The fourth proportional to 178,003.36, 245,644.71 and 97,431.29 is: 134,455.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,003.36 : 245,644.71 = 97,431.29 : x
  2. Step 2: Convert to fraction form
    178,003.36/245,644.71 = 97,431.29/x
  3. Step 3: Cross multiply
    178,003.36x = 245,644.71 × 97,431.29
  4. Step 4: Simplify right side
    178,003.36x = 23,933,480,976.98
  5. Step 5: Solve for x
    x = 23,933,480,976.98/178,003.36
  6. Step 6: Final answer
    x = 134,455.22

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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.