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Finding the Fourth Proportional to 84,483.76, 126,768.63 and 52,888.42

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Solution

The fourth proportional to 84,483.76, 126,768.63 and 52,888.42 is: 79,359.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,483.76 : 126,768.63 = 52,888.42 : x
  2. Step 2: Convert to fraction form
    84,483.76/126,768.63 = 52,888.42/x
  3. Step 3: Cross multiply
    84,483.76x = 126,768.63 × 52,888.42
  4. Step 4: Simplify right side
    84,483.76x = 6,704,592,546.26
  5. Step 5: Solve for x
    x = 6,704,592,546.26/84,483.76
  6. Step 6: Final answer
    x = 79,359.54

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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.