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Finding the Fourth Proportional to 104,777.99, 156,916.86 and 60,311.30

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Solution

The fourth proportional to 104,777.99, 156,916.86 and 60,311.30 is: 90,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,777.99 : 156,916.86 = 60,311.30 : x
  2. Step 2: Convert to fraction form
    104,777.99/156,916.86 = 60,311.30/x
  3. Step 3: Cross multiply
    104,777.99x = 156,916.86 × 60,311.30
  4. Step 4: Simplify right side
    104,777.99x = 9,463,859,818.52
  5. Step 5: Solve for x
    x = 9,463,859,818.52/104,777.99
  6. Step 6: Final answer
    x = 90,322.98

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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.