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Finding the Fourth Proportional to 163,640.39, 225,822.30 and 92,018.88

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Solution

The fourth proportional to 163,640.39, 225,822.30 and 92,018.88 is: 126,985.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,640.39 : 225,822.30 = 92,018.88 : x
  2. Step 2: Convert to fraction form
    163,640.39/225,822.30 = 92,018.88/x
  3. Step 3: Cross multiply
    163,640.39x = 225,822.30 × 92,018.88
  4. Step 4: Simplify right side
    163,640.39x = 20,779,915,125.02
  5. Step 5: Solve for x
    x = 20,779,915,125.02/163,640.39
  6. Step 6: Final answer
    x = 126,985.25

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1.5x scale

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.