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Finding the Fourth Proportional to 183,711.12, 275,628 and 71,394.90

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Solution

The fourth proportional to 183,711.12, 275,628 and 71,394.90 is: 107,116.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,711.12 : 275,628 = 71,394.90 : x
  2. Step 2: Convert to fraction form
    183,711.12/275,628 = 71,394.90/x
  3. Step 3: Cross multiply
    183,711.12x = 275,628 × 71,394.90
  4. Step 4: Simplify right side
    183,711.12x = 19,678,433,497.20
  5. Step 5: Solve for x
    x = 19,678,433,497.20/183,711.12
  6. Step 6: Final answer
    x = 107,116.18

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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.