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Finding the Fourth Proportional to 118,563.30, 177,779.28 and 48,491.82

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Solution

The fourth proportional to 118,563.30, 177,779.28 and 48,491.82 is: 72,710.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,563.30 : 177,779.28 = 48,491.82 : x
  2. Step 2: Convert to fraction form
    118,563.30/177,779.28 = 48,491.82/x
  3. Step 3: Cross multiply
    118,563.30x = 177,779.28 × 48,491.82
  4. Step 4: Simplify right side
    118,563.30x = 8,620,840,845.49
  5. Step 5: Solve for x
    x = 8,620,840,845.49/118,563.30
  6. Step 6: Final answer
    x = 72,710.87

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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.