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Finding the Fourth Proportional to 400,386.28, 600,672.84 and 116,082.76

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Solution

The fourth proportional to 400,386.28, 600,672.84 and 116,082.76 is: 174,151.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,386.28 : 600,672.84 = 116,082.76 : x
  2. Step 2: Convert to fraction form
    400,386.28/600,672.84 = 116,082.76/x
  3. Step 3: Cross multiply
    400,386.28x = 600,672.84 × 116,082.76
  4. Step 4: Simplify right side
    400,386.28x = 69,727,761,124.24
  5. Step 5: Solve for x
    x = 69,727,761,124.24/400,386.28
  6. Step 6: Final answer
    x = 174,151.22

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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.