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Finding the Fourth Proportional to 292,487.76, 403,635.77 and 171,631.06

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Solution

The fourth proportional to 292,487.76, 403,635.77 and 171,631.06 is: 236,852.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,487.76 : 403,635.77 = 171,631.06 : x
  2. Step 2: Convert to fraction form
    292,487.76/403,635.77 = 171,631.06/x
  3. Step 3: Cross multiply
    292,487.76x = 403,635.77 × 171,631.06
  4. Step 4: Simplify right side
    292,487.76x = 69,276,435,059.02
  5. Step 5: Solve for x
    x = 69,276,435,059.02/292,487.76
  6. Step 6: Final answer
    x = 236,852.42

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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.