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Finding the Fourth Proportional to 79,230.76, 118,777.02 and 39,732.52

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Solution

The fourth proportional to 79,230.76, 118,777.02 and 39,732.52 is: 59,564.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,230.76 : 118,777.02 = 39,732.52 : x
  2. Step 2: Convert to fraction form
    79,230.76/118,777.02 = 39,732.52/x
  3. Step 3: Cross multiply
    79,230.76x = 118,777.02 × 39,732.52
  4. Step 4: Simplify right side
    79,230.76x = 4,719,310,322.69
  5. Step 5: Solve for x
    x = 4,719,310,322.69/79,230.76
  6. Step 6: Final answer
    x = 59,564.12

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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.