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Finding the Fourth Proportional to 169,957.06, 254,935.50 and 80,940.70

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Solution

The fourth proportional to 169,957.06, 254,935.50 and 80,940.70 is: 121,411.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,957.06 : 254,935.50 = 80,940.70 : x
  2. Step 2: Convert to fraction form
    169,957.06/254,935.50 = 80,940.70/x
  3. Step 3: Cross multiply
    169,957.06x = 254,935.50 × 80,940.70
  4. Step 4: Simplify right side
    169,957.06x = 20,634,657,824.85
  5. Step 5: Solve for x
    x = 20,634,657,824.85/169,957.06
  6. Step 6: Final answer
    x = 121,411.01

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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.