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Finding the Fourth Proportional to 79,212.20, 118,818.30 and 23,808.20

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Solution

The fourth proportional to 79,212.20, 118,818.30 and 23,808.20 is: 35,712.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,212.20 : 118,818.30 = 23,808.20 : x
  2. Step 2: Convert to fraction form
    79,212.20/118,818.30 = 23,808.20/x
  3. Step 3: Cross multiply
    79,212.20x = 118,818.30 × 23,808.20
  4. Step 4: Simplify right side
    79,212.20x = 2,828,849,850.06
  5. Step 5: Solve for x
    x = 2,828,849,850.06/79,212.20
  6. Step 6: Final answer
    x = 35,712.30

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1.5x scale

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.