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Finding the Fourth Proportional to 88,847.76, 133,205.64 and 53,779.20

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Solution

The fourth proportional to 88,847.76, 133,205.64 and 53,779.20 is: 80,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,847.76 : 133,205.64 = 53,779.20 : x
  2. Step 2: Convert to fraction form
    88,847.76/133,205.64 = 53,779.20/x
  3. Step 3: Cross multiply
    88,847.76x = 133,205.64 × 53,779.20
  4. Step 4: Simplify right side
    88,847.76x = 7,163,692,754.69
  5. Step 5: Solve for x
    x = 7,163,692,754.69/88,847.76
  6. Step 6: Final answer
    x = 80,628.85

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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.