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Finding the Fourth Proportional to 71,056.39, 98,057.95 and 39,225.33

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Solution

The fourth proportional to 71,056.39, 98,057.95 and 39,225.33 is: 54,131.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,056.39 : 98,057.95 = 39,225.33 : x
  2. Step 2: Convert to fraction form
    71,056.39/98,057.95 = 39,225.33/x
  3. Step 3: Cross multiply
    71,056.39x = 98,057.95 × 39,225.33
  4. Step 4: Simplify right side
    71,056.39x = 3,846,354,957.58
  5. Step 5: Solve for x
    x = 3,846,354,957.58/71,056.39
  6. Step 6: Final answer
    x = 54,131.02

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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.