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Finding the Fourth Proportional to 79,175.80, 109,262.28 and 43,368.04

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Solution

The fourth proportional to 79,175.80, 109,262.28 and 43,368.04 is: 59,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,175.80 : 109,262.28 = 43,368.04 : x
  2. Step 2: Convert to fraction form
    79,175.80/109,262.28 = 43,368.04/x
  3. Step 3: Cross multiply
    79,175.80x = 109,262.28 × 43,368.04
  4. Step 4: Simplify right side
    79,175.80x = 4,738,490,929.53
  5. Step 5: Solve for x
    x = 4,738,490,929.53/79,175.80
  6. Step 6: Final answer
    x = 59,847.72

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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.