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Finding the Fourth Proportional to 581,091.91, 871,138.59 and 201,963.39

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Solution

The fourth proportional to 581,091.91, 871,138.59 and 201,963.39 is: 302,771.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,091.91 : 871,138.59 = 201,963.39 : x
  2. Step 2: Convert to fraction form
    581,091.91/871,138.59 = 201,963.39/x
  3. Step 3: Cross multiply
    581,091.91x = 871,138.59 × 201,963.39
  4. Step 4: Simplify right side
    581,091.91x = 175,938,102,796.22
  5. Step 5: Solve for x
    x = 175,938,102,796.22/581,091.91
  6. Step 6: Final answer
    x = 302,771.56

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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.