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Finding the Fourth Proportional to 79,858.18, 119,482.71 and 48,151.54

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Solution

The fourth proportional to 79,858.18, 119,482.71 and 48,151.54 is: 72,043.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,858.18 : 119,482.71 = 48,151.54 : x
  2. Step 2: Convert to fraction form
    79,858.18/119,482.71 = 48,151.54/x
  3. Step 3: Cross multiply
    79,858.18x = 119,482.71 × 48,151.54
  4. Step 4: Simplify right side
    79,858.18x = 5,753,276,489.87
  5. Step 5: Solve for x
    x = 5,753,276,489.87/79,858.18
  6. Step 6: Final answer
    x = 72,043.67

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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.