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Finding the Fourth Proportional to 163,640.57, 225,822.56 and 92,019.06

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Solution

The fourth proportional to 163,640.57, 225,822.56 and 92,019.06 is: 126,985.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,640.57 : 225,822.56 = 92,019.06 : x
  2. Step 2: Convert to fraction form
    163,640.57/225,822.56 = 92,019.06/x
  3. Step 3: Cross multiply
    163,640.57x = 225,822.56 × 92,019.06
  4. Step 4: Simplify right side
    163,640.57x = 20,779,979,237.90
  5. Step 5: Solve for x
    x = 20,779,979,237.90/163,640.57
  6. Step 6: Final answer
    x = 126,985.50

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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.