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Finding the Fourth Proportional to 104,352.66, 156,390.58 and 54,474.71

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Solution

The fourth proportional to 104,352.66, 156,390.58 and 54,474.71 is: 81,639.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,352.66 : 156,390.58 = 54,474.71 : x
  2. Step 2: Convert to fraction form
    104,352.66/156,390.58 = 54,474.71/x
  3. Step 3: Cross multiply
    104,352.66x = 156,390.58 × 54,474.71
  4. Step 4: Simplify right side
    104,352.66x = 8,519,331,492.23
  5. Step 5: Solve for x
    x = 8,519,331,492.23/104,352.66
  6. Step 6: Final answer
    x = 81,639.81

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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.