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Finding the Fourth Proportional to 79,715.32, 110,007.42 and 43,907.80

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Solution

The fourth proportional to 79,715.32, 110,007.42 and 43,907.80 is: 60,592.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,715.32 : 110,007.42 = 43,907.80 : x
  2. Step 2: Convert to fraction form
    79,715.32/110,007.42 = 43,907.80/x
  3. Step 3: Cross multiply
    79,715.32x = 110,007.42 × 43,907.80
  4. Step 4: Simplify right side
    79,715.32x = 4,830,183,795.88
  5. Step 5: Solve for x
    x = 4,830,183,795.88/79,715.32
  6. Step 6: Final answer
    x = 60,592.92

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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.