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Finding the Fourth Proportional to 203,055.77, 304,758.61 and 140,770.01

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Solution

The fourth proportional to 203,055.77, 304,758.61 and 140,770.01 is: 211,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,055.77 : 304,758.61 = 140,770.01 : x
  2. Step 2: Convert to fraction form
    203,055.77/304,758.61 = 140,770.01/x
  3. Step 3: Cross multiply
    203,055.77x = 304,758.61 × 140,770.01
  4. Step 4: Simplify right side
    203,055.77x = 42,900,871,668.91
  5. Step 5: Solve for x
    x = 42,900,871,668.91/203,055.77
  6. Step 6: Final answer
    x = 211,276.30

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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.