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Finding the Fourth Proportional to 168,053.60, 231,907.92 and 92,602.40

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Solution

The fourth proportional to 168,053.60, 231,907.92 and 92,602.40 is: 127,787.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,053.60 : 231,907.92 = 92,602.40 : x
  2. Step 2: Convert to fraction form
    168,053.60/231,907.92 = 92,602.40/x
  3. Step 3: Cross multiply
    168,053.60x = 231,907.92 × 92,602.40
  4. Step 4: Simplify right side
    168,053.60x = 21,475,229,971.01
  5. Step 5: Solve for x
    x = 21,475,229,971.01/168,053.60
  6. Step 6: Final answer
    x = 127,787.98

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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.