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Finding the Fourth Proportional to 181,313.91, 272,059.97 and 81,544.59

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Solution

The fourth proportional to 181,313.91, 272,059.97 and 81,544.59 is: 122,356.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,313.91 : 272,059.97 = 81,544.59 : x
  2. Step 2: Convert to fraction form
    181,313.91/272,059.97 = 81,544.59/x
  3. Step 3: Cross multiply
    181,313.91x = 272,059.97 × 81,544.59
  4. Step 4: Simplify right side
    181,313.91x = 22,185,018,301.34
  5. Step 5: Solve for x
    x = 22,185,018,301.34/181,313.91
  6. Step 6: Final answer
    x = 122,356.96

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1.5x scale

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.