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Finding the Fourth Proportional to 302,709.28, 454,047 and 92,330.68

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Solution

The fourth proportional to 302,709.28, 454,047 and 92,330.68 is: 138,490.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,709.28 : 454,047 = 92,330.68 : x
  2. Step 2: Convert to fraction form
    302,709.28/454,047 = 92,330.68/x
  3. Step 3: Cross multiply
    302,709.28x = 454,047 × 92,330.68
  4. Step 4: Simplify right side
    302,709.28x = 41,922,468,261.96
  5. Step 5: Solve for x
    x = 41,922,468,261.96/302,709.28
  6. Step 6: Final answer
    x = 138,490.86

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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.