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Finding the Fourth Proportional to 503,039.70, 754,634.61 and 166,116.06

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Solution

The fourth proportional to 503,039.70, 754,634.61 and 166,116.06 is: 249,198.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,039.70 : 754,634.61 = 166,116.06 : x
  2. Step 2: Convert to fraction form
    503,039.70/754,634.61 = 166,116.06/x
  3. Step 3: Cross multiply
    503,039.70x = 754,634.61 × 166,116.06
  4. Step 4: Simplify right side
    503,039.70x = 125,356,928,152.84
  5. Step 5: Solve for x
    x = 125,356,928,152.84/503,039.70
  6. Step 6: Final answer
    x = 249,198.88

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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.