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Finding the Fourth Proportional to 104,048.64, 155,766.78 and 64,478.52

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Solution

The fourth proportional to 104,048.64, 155,766.78 and 64,478.52 is: 96,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,048.64 : 155,766.78 = 64,478.52 : x
  2. Step 2: Convert to fraction form
    104,048.64/155,766.78 = 64,478.52/x
  3. Step 3: Cross multiply
    104,048.64x = 155,766.78 × 64,478.52
  4. Step 4: Simplify right side
    104,048.64x = 10,043,611,439.57
  5. Step 5: Solve for x
    x = 10,043,611,439.57/104,048.64
  6. Step 6: Final answer
    x = 96,528.04

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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.