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Finding the Fourth Proportional to 79,205.10, 118,807.65 and 73,956.30

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Solution

The fourth proportional to 79,205.10, 118,807.65 and 73,956.30 is: 110,934.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,205.10 : 118,807.65 = 73,956.30 : x
  2. Step 2: Convert to fraction form
    79,205.10/118,807.65 = 73,956.30/x
  3. Step 3: Cross multiply
    79,205.10x = 118,807.65 × 73,956.30
  4. Step 4: Simplify right side
    79,205.10x = 8,786,574,205.70
  5. Step 5: Solve for x
    x = 8,786,574,205.70/79,205.10
  6. Step 6: Final answer
    x = 110,934.45

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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.