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Finding the Fourth Proportional to 292,115.61, 403,186.81 and 171,295.82

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Solution

The fourth proportional to 292,115.61, 403,186.81 and 171,295.82 is: 236,427.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,115.61 : 403,186.81 = 171,295.82 : x
  2. Step 2: Convert to fraction form
    292,115.61/403,186.81 = 171,295.82/x
  3. Step 3: Cross multiply
    292,115.61x = 403,186.81 × 171,295.82
  4. Step 4: Simplify right side
    292,115.61x = 69,064,214,375.66
  5. Step 5: Solve for x
    x = 69,064,214,375.66/292,115.61
  6. Step 6: Final answer
    x = 236,427.67

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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.