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Finding the Fourth Proportional to 79,136.87, 118,714.68 and 49,557.15

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Solution

The fourth proportional to 79,136.87, 118,714.68 and 49,557.15 is: 74,341.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,136.87 : 118,714.68 = 49,557.15 : x
  2. Step 2: Convert to fraction form
    79,136.87/118,714.68 = 49,557.15/x
  3. Step 3: Cross multiply
    79,136.87x = 118,714.68 × 49,557.15
  4. Step 4: Simplify right side
    79,136.87x = 5,883,161,203.96
  5. Step 5: Solve for x
    x = 5,883,161,203.96/79,136.87
  6. Step 6: Final answer
    x = 74,341.60

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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.