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Finding the Fourth Proportional to 71,610.79, 98,824.44 and 39,345.82

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Solution

The fourth proportional to 71,610.79, 98,824.44 and 39,345.82 is: 54,298.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,610.79 : 98,824.44 = 39,345.82 : x
  2. Step 2: Convert to fraction form
    71,610.79/98,824.44 = 39,345.82/x
  3. Step 3: Cross multiply
    71,610.79x = 98,824.44 × 39,345.82
  4. Step 4: Simplify right side
    71,610.79x = 3,888,328,627.84
  5. Step 5: Solve for x
    x = 3,888,328,627.84/71,610.79
  6. Step 6: Final answer
    x = 54,298.08

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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.