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Finding the Fourth Proportional to 302,995.94, 454,354.16 and 89,687.55

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Solution

The fourth proportional to 302,995.94, 454,354.16 and 89,687.55 is: 134,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,995.94 : 454,354.16 = 89,687.55 : x
  2. Step 2: Convert to fraction form
    302,995.94/454,354.16 = 89,687.55/x
  3. Step 3: Cross multiply
    302,995.94x = 454,354.16 × 89,687.55
  4. Step 4: Simplify right side
    302,995.94x = 40,749,913,202.59
  5. Step 5: Solve for x
    x = 40,749,913,202.59/302,995.94
  6. Step 6: Final answer
    x = 134,489.96

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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.