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Finding the Fourth Proportional to 79,297.92, 118,750.05 and 66,208.32

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Solution

The fourth proportional to 79,297.92, 118,750.05 and 66,208.32 is: 99,148.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,297.92 : 118,750.05 = 66,208.32 : x
  2. Step 2: Convert to fraction form
    79,297.92/118,750.05 = 66,208.32/x
  3. Step 3: Cross multiply
    79,297.92x = 118,750.05 × 66,208.32
  4. Step 4: Simplify right side
    79,297.92x = 7,862,241,310.42
  5. Step 5: Solve for x
    x = 7,862,241,310.42/79,297.92
  6. Step 6: Final answer
    x = 99,148.14

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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.