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Finding the Fourth Proportional to 79,148.46, 109,224.85 and 43,338.46

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Solution

The fourth proportional to 79,148.46, 109,224.85 and 43,338.46 is: 59,807.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,148.46 : 109,224.85 = 43,338.46 : x
  2. Step 2: Convert to fraction form
    79,148.46/109,224.85 = 43,338.46/x
  3. Step 3: Cross multiply
    79,148.46x = 109,224.85 × 43,338.46
  4. Step 4: Simplify right side
    79,148.46x = 4,733,636,792.73
  5. Step 5: Solve for x
    x = 4,733,636,792.73/79,148.46
  6. Step 6: Final answer
    x = 59,807.06

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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.