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Finding the Fourth Proportional to 79,327.80, 118,985.52 and 29,384.40

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Solution

The fourth proportional to 79,327.80, 118,985.52 and 29,384.40 is: 44,074.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,327.80 : 118,985.52 = 29,384.40 : x
  2. Step 2: Convert to fraction form
    79,327.80/118,985.52 = 29,384.40/x
  3. Step 3: Cross multiply
    79,327.80x = 118,985.52 × 29,384.40
  4. Step 4: Simplify right side
    79,327.80x = 3,496,318,113.89
  5. Step 5: Solve for x
    x = 3,496,318,113.89/79,327.80
  6. Step 6: Final answer
    x = 44,074.31

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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.