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Finding the Fourth Proportional to 104,116.52, 143,680.88 and 56,369.90

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Solution

The fourth proportional to 104,116.52, 143,680.88 and 56,369.90 is: 77,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,116.52 : 143,680.88 = 56,369.90 : x
  2. Step 2: Convert to fraction form
    104,116.52/143,680.88 = 56,369.90/x
  3. Step 3: Cross multiply
    104,116.52x = 143,680.88 × 56,369.90
  4. Step 4: Simplify right side
    104,116.52x = 8,099,276,837.51
  5. Step 5: Solve for x
    x = 8,099,276,837.51/104,116.52
  6. Step 6: Final answer
    x = 77,790.51

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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.