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Finding the Fourth Proportional to 292,685.61, 403,905.24 and 165,361.17

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Solution

The fourth proportional to 292,685.61, 403,905.24 and 165,361.17 is: 228,197.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,685.61 : 403,905.24 = 165,361.17 : x
  2. Step 2: Convert to fraction form
    292,685.61/403,905.24 = 165,361.17/x
  3. Step 3: Cross multiply
    292,685.61x = 403,905.24 × 165,361.17
  4. Step 4: Simplify right side
    292,685.61x = 66,790,243,055.53
  5. Step 5: Solve for x
    x = 66,790,243,055.53/292,685.61
  6. Step 6: Final answer
    x = 228,197.91

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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.