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Finding the Fourth Proportional to 79,830.72, 110,166.03 and 44,021.32

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Solution

The fourth proportional to 79,830.72, 110,166.03 and 44,021.32 is: 60,749.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,830.72 : 110,166.03 = 44,021.32 : x
  2. Step 2: Convert to fraction form
    79,830.72/110,166.03 = 44,021.32/x
  3. Step 3: Cross multiply
    79,830.72x = 110,166.03 × 44,021.32
  4. Step 4: Simplify right side
    79,830.72x = 4,849,653,784.34
  5. Step 5: Solve for x
    x = 4,849,653,784.34/79,830.72
  6. Step 6: Final answer
    x = 60,749.22

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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.