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Finding the Fourth Proportional to 64,411.55, 96,651.12 and 46,787.83

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Solution

The fourth proportional to 64,411.55, 96,651.12 and 46,787.83 is: 70,206.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,411.55 : 96,651.12 = 46,787.83 : x
  2. Step 2: Convert to fraction form
    64,411.55/96,651.12 = 46,787.83/x
  3. Step 3: Cross multiply
    64,411.55x = 96,651.12 × 46,787.83
  4. Step 4: Simplify right side
    64,411.55x = 4,522,096,105.70
  5. Step 5: Solve for x
    x = 4,522,096,105.70/64,411.55
  6. Step 6: Final answer
    x = 70,206.29

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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.