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Finding the Fourth Proportional to 104,419.57, 144,099.14 and 56,672.91

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Solution

The fourth proportional to 104,419.57, 144,099.14 and 56,672.91 is: 78,208.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.57 : 144,099.14 = 56,672.91 : x
  2. Step 2: Convert to fraction form
    104,419.57/144,099.14 = 56,672.91/x
  3. Step 3: Cross multiply
    104,419.57x = 144,099.14 × 56,672.91
  4. Step 4: Simplify right side
    104,419.57x = 8,166,517,592.30
  5. Step 5: Solve for x
    x = 8,166,517,592.30/104,419.57
  6. Step 6: Final answer
    x = 78,208.69

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1.5x scale

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.