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Finding the Fourth Proportional to 79,068, 118,602.12 and 32,320.80

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Solution

The fourth proportional to 79,068, 118,602.12 and 32,320.80 is: 48,481.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,068 : 118,602.12 = 32,320.80 : x
  2. Step 2: Convert to fraction form
    79,068/118,602.12 = 32,320.80/x
  3. Step 3: Cross multiply
    79,068x = 118,602.12 × 32,320.80
  4. Step 4: Simplify right side
    79,068x = 3,833,315,400.10
  5. Step 5: Solve for x
    x = 3,833,315,400.10/79,068
  6. Step 6: Final answer
    x = 48,481.25

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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.