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Finding the Fourth Proportional to 104,084.64, 143,636.82 and 56,338.38

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Solution

The fourth proportional to 104,084.64, 143,636.82 and 56,338.38 is: 77,746.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,084.64 : 143,636.82 = 56,338.38 : x
  2. Step 2: Convert to fraction form
    104,084.64/143,636.82 = 56,338.38/x
  3. Step 3: Cross multiply
    104,084.64x = 143,636.82 × 56,338.38
  4. Step 4: Simplify right side
    104,084.64x = 8,092,265,747.15
  5. Step 5: Solve for x
    x = 8,092,265,747.15/104,084.64
  6. Step 6: Final answer
    x = 77,746.97

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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.