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Finding the Fourth Proportional to 289,908.56, 400,077.88 and 175,171.28

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Solution

The fourth proportional to 289,908.56, 400,077.88 and 175,171.28 is: 241,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,908.56 : 400,077.88 = 175,171.28 : x
  2. Step 2: Convert to fraction form
    289,908.56/400,077.88 = 175,171.28/x
  3. Step 3: Cross multiply
    289,908.56x = 400,077.88 × 175,171.28
  4. Step 4: Simplify right side
    289,908.56x = 70,082,154,339.29
  5. Step 5: Solve for x
    x = 70,082,154,339.29/289,908.56
  6. Step 6: Final answer
    x = 241,738.82

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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.