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Finding the Fourth Proportional to 357,151.44, 492,891.18 and 236,082.78

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Solution

The fourth proportional to 357,151.44, 492,891.18 and 236,082.78 is: 325,808.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,151.44 : 492,891.18 = 236,082.78 : x
  2. Step 2: Convert to fraction form
    357,151.44/492,891.18 = 236,082.78/x
  3. Step 3: Cross multiply
    357,151.44x = 492,891.18 × 236,082.78
  4. Step 4: Simplify right side
    357,151.44x = 116,363,120,011.88
  5. Step 5: Solve for x
    x = 116,363,120,011.88/357,151.44
  6. Step 6: Final answer
    x = 325,808.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.