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Finding the Fourth Proportional to 79,320.92, 118,977.96 and 26,730.20

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Solution

The fourth proportional to 79,320.92, 118,977.96 and 26,730.20 is: 40,094.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,320.92 : 118,977.96 = 26,730.20 : x
  2. Step 2: Convert to fraction form
    79,320.92/118,977.96 = 26,730.20/x
  3. Step 3: Cross multiply
    79,320.92x = 118,977.96 × 26,730.20
  4. Step 4: Simplify right side
    79,320.92x = 3,180,304,666.39
  5. Step 5: Solve for x
    x = 3,180,304,666.39/79,320.92
  6. Step 6: Final answer
    x = 40,094.15

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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.