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Finding the Fourth Proportional to 79,102.50, 118,653.78 and 23,698.50

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Solution

The fourth proportional to 79,102.50, 118,653.78 and 23,698.50 is: 35,547.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,102.50 : 118,653.78 = 23,698.50 : x
  2. Step 2: Convert to fraction form
    79,102.50/118,653.78 = 23,698.50/x
  3. Step 3: Cross multiply
    79,102.50x = 118,653.78 × 23,698.50
  4. Step 4: Simplify right side
    79,102.50x = 2,811,916,605.33
  5. Step 5: Solve for x
    x = 2,811,916,605.33/79,102.50
  6. Step 6: Final answer
    x = 35,547.76

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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.