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Finding the Fourth Proportional to 163,015.30, 244,194.90 and 109,871.20

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Solution

The fourth proportional to 163,015.30, 244,194.90 and 109,871.20 is: 164,585.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,015.30 : 244,194.90 = 109,871.20 : x
  2. Step 2: Convert to fraction form
    163,015.30/244,194.90 = 109,871.20/x
  3. Step 3: Cross multiply
    163,015.30x = 244,194.90 × 109,871.20
  4. Step 4: Simplify right side
    163,015.30x = 26,829,986,696.88
  5. Step 5: Solve for x
    x = 26,829,986,696.88/163,015.30
  6. Step 6: Final answer
    x = 164,585.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.