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Finding the Fourth Proportional to 61,955.75, 85,500.80 and 43,838.96

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Solution

The fourth proportional to 61,955.75, 85,500.80 and 43,838.96 is: 60,499.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,955.75 : 85,500.80 = 43,838.96 : x
  2. Step 2: Convert to fraction form
    61,955.75/85,500.80 = 43,838.96/x
  3. Step 3: Cross multiply
    61,955.75x = 85,500.80 × 43,838.96
  4. Step 4: Simplify right side
    61,955.75x = 3,748,265,668.87
  5. Step 5: Solve for x
    x = 3,748,265,668.87/61,955.75
  6. Step 6: Final answer
    x = 60,499.07

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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.