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Finding the Fourth Proportional to 292,835.25, 404,112.93 and 158,699.25

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Solution

The fourth proportional to 292,835.25, 404,112.93 and 158,699.25 is: 219,005.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,835.25 : 404,112.93 = 158,699.25 : x
  2. Step 2: Convert to fraction form
    292,835.25/404,112.93 = 158,699.25/x
  3. Step 3: Cross multiply
    292,835.25x = 404,112.93 × 158,699.25
  4. Step 4: Simplify right side
    292,835.25x = 64,132,418,906.30
  5. Step 5: Solve for x
    x = 64,132,418,906.30/292,835.25
  6. Step 6: Final answer
    x = 219,005.12

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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.