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Finding the Fourth Proportional to 104,467.60, 156,803.80 and 51,936.40

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Solution

The fourth proportional to 104,467.60, 156,803.80 and 51,936.40 is: 77,955.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,467.60 : 156,803.80 = 51,936.40 : x
  2. Step 2: Convert to fraction form
    104,467.60/156,803.80 = 51,936.40/x
  3. Step 3: Cross multiply
    104,467.60x = 156,803.80 × 51,936.40
  4. Step 4: Simplify right side
    104,467.60x = 8,143,824,878.32
  5. Step 5: Solve for x
    x = 8,143,824,878.32/104,467.60
  6. Step 6: Final answer
    x = 77,955.51

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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.