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Finding the Fourth Proportional to 79,012.96, 118,566.06 and 29,127.88

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Solution

The fourth proportional to 79,012.96, 118,566.06 and 29,127.88 is: 43,709.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,012.96 : 118,566.06 = 29,127.88 : x
  2. Step 2: Convert to fraction form
    79,012.96/118,566.06 = 29,127.88/x
  3. Step 3: Cross multiply
    79,012.96x = 118,566.06 × 29,127.88
  4. Step 4: Simplify right side
    79,012.96x = 3,453,577,967.75
  5. Step 5: Solve for x
    x = 3,453,577,967.75/79,012.96
  6. Step 6: Final answer
    x = 43,709.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.