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Finding the Fourth Proportional to 251,665.91, 347,313.91 and 144,242.84

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Solution

The fourth proportional to 251,665.91, 347,313.91 and 144,242.84 is: 199,063.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,665.91 : 347,313.91 = 144,242.84 : x
  2. Step 2: Convert to fraction form
    251,665.91/347,313.91 = 144,242.84/x
  3. Step 3: Cross multiply
    251,665.91x = 347,313.91 × 144,242.84
  4. Step 4: Simplify right side
    251,665.91x = 50,097,545,257.58
  5. Step 5: Solve for x
    x = 50,097,545,257.58/251,665.91
  6. Step 6: Final answer
    x = 199,063.70

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1.5x scale

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.