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Finding the Fourth Proportional to 292,604.78, 403,789.78 and 163,546.26

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Solution

The fourth proportional to 292,604.78, 403,789.78 and 163,546.26 is: 225,691.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,604.78 : 403,789.78 = 163,546.26 : x
  2. Step 2: Convert to fraction form
    292,604.78/403,789.78 = 163,546.26/x
  3. Step 3: Cross multiply
    292,604.78x = 403,789.78 × 163,546.26
  4. Step 4: Simplify right side
    292,604.78x = 66,038,308,345.22
  5. Step 5: Solve for x
    x = 66,038,308,345.22/292,604.78
  6. Step 6: Final answer
    x = 225,691.15

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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.