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Finding the Fourth Proportional to 292,636.80, 403,871.56 and 165,320.60

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Solution

The fourth proportional to 292,636.80, 403,871.56 and 165,320.60 is: 228,160.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,636.80 : 403,871.56 = 165,320.60 : x
  2. Step 2: Convert to fraction form
    292,636.80/403,871.56 = 165,320.60/x
  3. Step 3: Cross multiply
    292,636.80x = 403,871.56 × 165,320.60
  4. Step 4: Simplify right side
    292,636.80x = 66,768,288,622.14
  5. Step 5: Solve for x
    x = 66,768,288,622.14/292,636.80
  6. Step 6: Final answer
    x = 228,160.94

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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.