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Finding the Fourth Proportional to 169,631.80, 254,447.70 and 109,756.60

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Solution

The fourth proportional to 169,631.80, 254,447.70 and 109,756.60 is: 164,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,631.80 : 254,447.70 = 109,756.60 : x
  2. Step 2: Convert to fraction form
    169,631.80/254,447.70 = 109,756.60/x
  3. Step 3: Cross multiply
    169,631.80x = 254,447.70 × 109,756.60
  4. Step 4: Simplify right side
    169,631.80x = 27,927,314,429.82
  5. Step 5: Solve for x
    x = 27,927,314,429.82/169,631.80
  6. Step 6: Final answer
    x = 164,634.90

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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.