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Finding the Fourth Proportional to 581,103.94, 871,675.58 and 154,640.18

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Solution

The fourth proportional to 581,103.94, 871,675.58 and 154,640.18 is: 231,965.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,103.94 : 871,675.58 = 154,640.18 : x
  2. Step 2: Convert to fraction form
    581,103.94/871,675.58 = 154,640.18/x
  3. Step 3: Cross multiply
    581,103.94x = 871,675.58 × 154,640.18
  4. Step 4: Simplify right side
    581,103.94x = 134,796,070,654.42
  5. Step 5: Solve for x
    x = 134,796,070,654.42/581,103.94
  6. Step 6: Final answer
    x = 231,965.51

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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.