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Finding the Fourth Proportional to 308,082.24, 462,139.80 and 97,736.40

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Solution

The fourth proportional to 308,082.24, 462,139.80 and 97,736.40 is: 146,609.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,082.24 : 462,139.80 = 97,736.40 : x
  2. Step 2: Convert to fraction form
    308,082.24/462,139.80 = 97,736.40/x
  3. Step 3: Cross multiply
    308,082.24x = 462,139.80 × 97,736.40
  4. Step 4: Simplify right side
    308,082.24x = 45,167,880,348.72
  5. Step 5: Solve for x
    x = 45,167,880,348.72/308,082.24
  6. Step 6: Final answer
    x = 146,609.82

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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.