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Finding the Fourth Proportional to 292,486.76, 403,634.39 and 171,630.06

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Solution

The fourth proportional to 292,486.76, 403,634.39 and 171,630.06 is: 236,851.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,486.76 : 403,634.39 = 171,630.06 : x
  2. Step 2: Convert to fraction form
    292,486.76/403,634.39 = 171,630.06/x
  3. Step 3: Cross multiply
    292,486.76x = 403,634.39 × 171,630.06
  4. Step 4: Simplify right side
    292,486.76x = 69,275,793,703.75
  5. Step 5: Solve for x
    x = 69,275,793,703.75/292,486.76
  6. Step 6: Final answer
    x = 236,851.05

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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.