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Finding the Fourth Proportional to 104,709.85, 144,499.47 and 56,963.08

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Solution

The fourth proportional to 104,709.85, 144,499.47 and 56,963.08 is: 78,608.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,709.85 : 144,499.47 = 56,963.08 : x
  2. Step 2: Convert to fraction form
    104,709.85/144,499.47 = 56,963.08/x
  3. Step 3: Cross multiply
    104,709.85x = 144,499.47 × 56,963.08
  4. Step 4: Simplify right side
    104,709.85x = 8,231,134,869.57
  5. Step 5: Solve for x
    x = 8,231,134,869.57/104,709.85
  6. Step 6: Final answer
    x = 78,608.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.