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Finding the Fourth Proportional to 78,706.10, 108,617.13 and 44,716.01

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Solution

The fourth proportional to 78,706.10, 108,617.13 and 44,716.01 is: 61,709.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,706.10 : 108,617.13 = 44,716.01 : x
  2. Step 2: Convert to fraction form
    78,706.10/108,617.13 = 44,716.01/x
  3. Step 3: Cross multiply
    78,706.10x = 108,617.13 × 44,716.01
  4. Step 4: Simplify right side
    78,706.10x = 4,856,924,128.17
  5. Step 5: Solve for x
    x = 4,856,924,128.17/78,706.10
  6. Step 6: Final answer
    x = 61,709.63

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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.