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Finding the Fourth Proportional to 236,495.82, 326,362.14 and 129,062.28

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Solution

The fourth proportional to 236,495.82, 326,362.14 and 129,062.28 is: 178,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,495.82 : 326,362.14 = 129,062.28 : x
  2. Step 2: Convert to fraction form
    236,495.82/326,362.14 = 129,062.28/x
  3. Step 3: Cross multiply
    236,495.82x = 326,362.14 × 129,062.28
  4. Step 4: Simplify right side
    236,495.82x = 42,121,041,894.08
  5. Step 5: Solve for x
    x = 42,121,041,894.08/236,495.82
  6. Step 6: Final answer
    x = 178,104.80

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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.