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Finding the Fourth Proportional to 181,816.60, 272,627.70 and 76,516.60

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Solution

The fourth proportional to 181,816.60, 272,627.70 and 76,516.60 is: 114,733.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,816.60 : 272,627.70 = 76,516.60 : x
  2. Step 2: Convert to fraction form
    181,816.60/272,627.70 = 76,516.60/x
  3. Step 3: Cross multiply
    181,816.60x = 272,627.70 × 76,516.60
  4. Step 4: Simplify right side
    181,816.60x = 20,860,544,669.82
  5. Step 5: Solve for x
    x = 20,860,544,669.82/181,816.60
  6. Step 6: Final answer
    x = 114,733.99

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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.