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Finding the Fourth Proportional to 79,219.48, 118,889.16 and 29,329.96

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Solution

The fourth proportional to 79,219.48, 118,889.16 and 29,329.96 is: 44,017.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,219.48 : 118,889.16 = 29,329.96 : x
  2. Step 2: Convert to fraction form
    79,219.48/118,889.16 = 29,329.96/x
  3. Step 3: Cross multiply
    79,219.48x = 118,889.16 × 29,329.96
  4. Step 4: Simplify right side
    79,219.48x = 3,487,014,307.23
  5. Step 5: Solve for x
    x = 3,487,014,307.23/79,219.48
  6. Step 6: Final answer
    x = 44,017.13

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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.