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Finding the Fourth Proportional to 78,833.81, 108,792.97 and 43,026.12

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Solution

The fourth proportional to 78,833.81, 108,792.97 and 43,026.12 is: 59,377.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,833.81 : 108,792.97 = 43,026.12 : x
  2. Step 2: Convert to fraction form
    78,833.81/108,792.97 = 43,026.12/x
  3. Step 3: Cross multiply
    78,833.81x = 108,792.97 × 43,026.12
  4. Step 4: Simplify right side
    78,833.81x = 4,680,939,274.81
  5. Step 5: Solve for x
    x = 4,680,939,274.81/78,833.81
  6. Step 6: Final answer
    x = 59,377.30

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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.