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Finding the Fourth Proportional to 79,503.52, 109,712.64 and 43,693.52

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Solution

The fourth proportional to 79,503.52, 109,712.64 and 43,693.52 is: 60,295.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,503.52 : 109,712.64 = 43,693.52 : x
  2. Step 2: Convert to fraction form
    79,503.52/109,712.64 = 43,693.52/x
  3. Step 3: Cross multiply
    79,503.52x = 109,712.64 × 43,693.52
  4. Step 4: Simplify right side
    79,503.52x = 4,793,731,430.09
  5. Step 5: Solve for x
    x = 4,793,731,430.09/79,503.52
  6. Step 6: Final answer
    x = 60,295.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.