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Finding the Fourth Proportional to 84,492.88, 126,740.28 and 22,169.68

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Solution

The fourth proportional to 84,492.88, 126,740.28 and 22,169.68 is: 33,254.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,492.88 : 126,740.28 = 22,169.68 : x
  2. Step 2: Convert to fraction form
    84,492.88/126,740.28 = 22,169.68/x
  3. Step 3: Cross multiply
    84,492.88x = 126,740.28 × 22,169.68
  4. Step 4: Simplify right side
    84,492.88x = 2,809,791,450.71
  5. Step 5: Solve for x
    x = 2,809,791,450.71/84,492.88
  6. Step 6: Final answer
    x = 33,254.77

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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.