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Finding the Fourth Proportional to 203,174.01, 304,781.05 and 70,036.74

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Solution

The fourth proportional to 203,174.01, 304,781.05 and 70,036.74 is: 105,062.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,174.01 : 304,781.05 = 70,036.74 : x
  2. Step 2: Convert to fraction form
    203,174.01/304,781.05 = 70,036.74/x
  3. Step 3: Cross multiply
    203,174.01x = 304,781.05 × 70,036.74
  4. Step 4: Simplify right side
    203,174.01x = 21,345,871,155.78
  5. Step 5: Solve for x
    x = 21,345,871,155.78/203,174.01
  6. Step 6: Final answer
    x = 105,062.02

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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.