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Finding the Fourth Proportional to 70,581.87, 105,779.35 and 51,773.85

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Solution

The fourth proportional to 70,581.87, 105,779.35 and 51,773.85 is: 77,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,581.87 : 105,779.35 = 51,773.85 : x
  2. Step 2: Convert to fraction form
    70,581.87/105,779.35 = 51,773.85/x
  3. Step 3: Cross multiply
    70,581.87x = 105,779.35 × 51,773.85
  4. Step 4: Simplify right side
    70,581.87x = 5,476,604,200.00
  5. Step 5: Solve for x
    x = 5,476,604,200.00/70,581.87
  6. Step 6: Final answer
    x = 77,592.22

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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.