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Finding the Fourth Proportional to 104,295.01, 143,886.42 and 68,039.08

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Solution

The fourth proportional to 104,295.01, 143,886.42 and 68,039.08 is: 93,867.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,295.01 : 143,886.42 = 68,039.08 : x
  2. Step 2: Convert to fraction form
    104,295.01/143,886.42 = 68,039.08/x
  3. Step 3: Cross multiply
    104,295.01x = 143,886.42 × 68,039.08
  4. Step 4: Simplify right side
    104,295.01x = 9,789,899,641.29
  5. Step 5: Solve for x
    x = 9,789,899,641.29/104,295.01
  6. Step 6: Final answer
    x = 93,867.38

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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.