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Finding the Fourth Proportional to 104,214.58, 143,865.71 and 69,818.54

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Solution

The fourth proportional to 104,214.58, 143,865.71 and 69,818.54 is: 96,382.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,214.58 : 143,865.71 = 69,818.54 : x
  2. Step 2: Convert to fraction form
    104,214.58/143,865.71 = 69,818.54/x
  3. Step 3: Cross multiply
    104,214.58x = 143,865.71 × 69,818.54
  4. Step 4: Simplify right side
    104,214.58x = 10,044,493,119.51
  5. Step 5: Solve for x
    x = 10,044,493,119.51/104,214.58
  6. Step 6: Final answer
    x = 96,382.80

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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.