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Finding the Fourth Proportional to 104,052.92, 143,591.92 and 56,305.20

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Solution

The fourth proportional to 104,052.92, 143,591.92 and 56,305.20 is: 77,700.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,052.92 : 143,591.92 = 56,305.20 : x
  2. Step 2: Convert to fraction form
    104,052.92/143,591.92 = 56,305.20/x
  3. Step 3: Cross multiply
    104,052.92x = 143,591.92 × 56,305.20
  4. Step 4: Simplify right side
    104,052.92x = 8,084,971,773.98
  5. Step 5: Solve for x
    x = 8,084,971,773.98/104,052.92
  6. Step 6: Final answer
    x = 77,700.58

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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.