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Finding the Fourth Proportional to 79,397.70, 118,999.35 and 34,977.30

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Solution

The fourth proportional to 79,397.70, 118,999.35 and 34,977.30 is: 52,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,397.70 : 118,999.35 = 34,977.30 : x
  2. Step 2: Convert to fraction form
    79,397.70/118,999.35 = 34,977.30/x
  3. Step 3: Cross multiply
    79,397.70x = 118,999.35 × 34,977.30
  4. Step 4: Simplify right side
    79,397.70x = 4,162,275,964.76
  5. Step 5: Solve for x
    x = 4,162,275,964.76/79,397.70
  6. Step 6: Final answer
    x = 52,423.13

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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.