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Finding the Fourth Proportional to 79,157.60, 118,767.72 and 34,753.40

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Solution

The fourth proportional to 79,157.60, 118,767.72 and 34,753.40 is: 52,143.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,157.60 : 118,767.72 = 34,753.40 : x
  2. Step 2: Convert to fraction form
    79,157.60/118,767.72 = 34,753.40/x
  3. Step 3: Cross multiply
    79,157.60x = 118,767.72 × 34,753.40
  4. Step 4: Simplify right side
    79,157.60x = 4,127,582,080.25
  5. Step 5: Solve for x
    x = 4,127,582,080.25/79,157.60
  6. Step 6: Final answer
    x = 52,143.85

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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.