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Finding the Fourth Proportional to 104,419.53, 144,099.06 and 56,672.90

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Solution

The fourth proportional to 104,419.53, 144,099.06 and 56,672.90 is: 78,208.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,419.53 : 144,099.06 = 56,672.90 : x
  2. Step 2: Convert to fraction form
    104,419.53/144,099.06 = 56,672.90/x
  3. Step 3: Cross multiply
    104,419.53x = 144,099.06 × 56,672.90
  4. Step 4: Simplify right side
    104,419.53x = 8,166,511,224.83
  5. Step 5: Solve for x
    x = 8,166,511,224.83/104,419.53
  6. Step 6: Final answer
    x = 78,208.66

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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.