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Finding the Fourth Proportional to 203,179.01, 304,955.63 and 103,410.50

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Solution

The fourth proportional to 203,179.01, 304,955.63 and 103,410.50 is: 155,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,179.01 : 304,955.63 = 103,410.50 : x
  2. Step 2: Convert to fraction form
    203,179.01/304,955.63 = 103,410.50/x
  3. Step 3: Cross multiply
    203,179.01x = 304,955.63 × 103,410.50
  4. Step 4: Simplify right side
    203,179.01x = 31,535,613,659.06
  5. Step 5: Solve for x
    x = 31,535,613,659.06/203,179.01
  6. Step 6: Final answer
    x = 155,210.98

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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.