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Finding the Fourth Proportional to 79,293.85, 109,430.49 and 43,483.87

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Solution

The fourth proportional to 79,293.85, 109,430.49 and 43,483.87 is: 60,010.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,293.85 : 109,430.49 = 43,483.87 : x
  2. Step 2: Convert to fraction form
    79,293.85/109,430.49 = 43,483.87/x
  3. Step 3: Cross multiply
    79,293.85x = 109,430.49 × 43,483.87
  4. Step 4: Simplify right side
    79,293.85x = 4,758,461,270.22
  5. Step 5: Solve for x
    x = 4,758,461,270.22/79,293.85
  6. Step 6: Final answer
    x = 60,010.47

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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.