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Finding the Fourth Proportional to 181,355.96, 250,277.30 and 100,786.88

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Solution

The fourth proportional to 181,355.96, 250,277.30 and 100,786.88 is: 139,089.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,355.96 : 250,277.30 = 100,786.88 : x
  2. Step 2: Convert to fraction form
    181,355.96/250,277.30 = 100,786.88/x
  3. Step 3: Cross multiply
    181,355.96x = 250,277.30 × 100,786.88
  4. Step 4: Simplify right side
    181,355.96x = 25,224,668,201.82
  5. Step 5: Solve for x
    x = 25,224,668,201.82/181,355.96
  6. Step 6: Final answer
    x = 139,089.27

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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.