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Finding the Fourth Proportional to 79,236, 118,772.10 and 26,627.76

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Solution

The fourth proportional to 79,236, 118,772.10 and 26,627.76 is: 39,914.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,236 : 118,772.10 = 26,627.76 : x
  2. Step 2: Convert to fraction form
    79,236/118,772.10 = 26,627.76/x
  3. Step 3: Cross multiply
    79,236x = 118,772.10 × 26,627.76
  4. Step 4: Simplify right side
    79,236x = 3,162,634,973.50
  5. Step 5: Solve for x
    x = 3,162,634,973.50/79,236
  6. Step 6: Final answer
    x = 39,914.12

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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.