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Finding the Fourth Proportional to 168,318, 232,283.70 and 92,871.36

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Solution

The fourth proportional to 168,318, 232,283.70 and 92,871.36 is: 128,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,318 : 232,283.70 = 92,871.36 : x
  2. Step 2: Convert to fraction form
    168,318/232,283.70 = 92,871.36/x
  3. Step 3: Cross multiply
    168,318x = 232,283.70 × 92,871.36
  4. Step 4: Simplify right side
    168,318x = 21,572,503,124.83
  5. Step 5: Solve for x
    x = 21,572,503,124.83/168,318
  6. Step 6: Final answer
    x = 128,165.16

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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.