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Finding the Fourth Proportional to 89,059.68, 133,416.60 and 79,595.64

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Solution

The fourth proportional to 89,059.68, 133,416.60 and 79,595.64 is: 119,238.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,059.68 : 133,416.60 = 79,595.64 : x
  2. Step 2: Convert to fraction form
    89,059.68/133,416.60 = 79,595.64/x
  3. Step 3: Cross multiply
    89,059.68x = 133,416.60 × 79,595.64
  4. Step 4: Simplify right side
    89,059.68x = 10,619,379,663.62
  5. Step 5: Solve for x
    x = 10,619,379,663.62/89,059.68
  6. Step 6: Final answer
    x = 119,238.92

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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.