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Finding the Fourth Proportional to 181,835.62, 272,820.39 and 76,643.62

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Solution

The fourth proportional to 181,835.62, 272,820.39 and 76,643.62 is: 114,993.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,835.62 : 272,820.39 = 76,643.62 : x
  2. Step 2: Convert to fraction form
    181,835.62/272,820.39 = 76,643.62/x
  3. Step 3: Cross multiply
    181,835.62x = 272,820.39 × 76,643.62
  4. Step 4: Simplify right side
    181,835.62x = 20,909,942,299.41
  5. Step 5: Solve for x
    x = 20,909,942,299.41/181,835.62
  6. Step 6: Final answer
    x = 114,993.65

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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.