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Finding the Fourth Proportional to 169,619.20, 254,428.80 and 44,960.20

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Solution

The fourth proportional to 169,619.20, 254,428.80 and 44,960.20 is: 67,440.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,619.20 : 254,428.80 = 44,960.20 : x
  2. Step 2: Convert to fraction form
    169,619.20/254,428.80 = 44,960.20/x
  3. Step 3: Cross multiply
    169,619.20x = 254,428.80 × 44,960.20
  4. Step 4: Simplify right side
    169,619.20x = 11,439,169,733.76
  5. Step 5: Solve for x
    x = 11,439,169,733.76/169,619.20
  6. Step 6: Final answer
    x = 67,440.30

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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.