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Finding the Fourth Proportional to 79,281.51, 118,939.76 and 23,126.02

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Solution

The fourth proportional to 79,281.51, 118,939.76 and 23,126.02 is: 34,694.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,281.51 : 118,939.76 = 23,126.02 : x
  2. Step 2: Convert to fraction form
    79,281.51/118,939.76 = 23,126.02/x
  3. Step 3: Cross multiply
    79,281.51x = 118,939.76 × 23,126.02
  4. Step 4: Simplify right side
    79,281.51x = 2,750,603,029.02
  5. Step 5: Solve for x
    x = 2,750,603,029.02/79,281.51
  6. Step 6: Final answer
    x = 34,694.13

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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.