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Finding the Fourth Proportional to 88,709.10, 133,089.15 and 51,295.98

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Solution

The fourth proportional to 88,709.10, 133,089.15 and 51,295.98 is: 76,958.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,709.10 : 133,089.15 = 51,295.98 : x
  2. Step 2: Convert to fraction form
    88,709.10/133,089.15 = 51,295.98/x
  3. Step 3: Cross multiply
    88,709.10x = 133,089.15 × 51,295.98
  4. Step 4: Simplify right side
    88,709.10x = 6,826,938,376.62
  5. Step 5: Solve for x
    x = 6,826,938,376.62/88,709.10
  6. Step 6: Final answer
    x = 76,958.72

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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.