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Finding the Fourth Proportional to 104,709.79, 156,814.53 and 57,253.92

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Solution

The fourth proportional to 104,709.79, 156,814.53 and 57,253.92 is: 85,744.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,709.79 : 156,814.53 = 57,253.92 : x
  2. Step 2: Convert to fraction form
    104,709.79/156,814.53 = 57,253.92/x
  3. Step 3: Cross multiply
    104,709.79x = 156,814.53 × 57,253.92
  4. Step 4: Simplify right side
    104,709.79x = 8,978,246,555.46
  5. Step 5: Solve for x
    x = 8,978,246,555.46/104,709.79
  6. Step 6: Final answer
    x = 85,744.10

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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.