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Finding the Fourth Proportional to 292,371.32, 403,469.26 and 171,489.40

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Solution

The fourth proportional to 292,371.32, 403,469.26 and 171,489.40 is: 236,653.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,371.32 : 403,469.26 = 171,489.40 : x
  2. Step 2: Convert to fraction form
    292,371.32/403,469.26 = 171,489.40/x
  3. Step 3: Cross multiply
    292,371.32x = 403,469.26 × 171,489.40
  4. Step 4: Simplify right side
    292,371.32x = 69,190,701,315.84
  5. Step 5: Solve for x
    x = 69,190,701,315.84/292,371.32
  6. Step 6: Final answer
    x = 236,653.52

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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.