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Finding the Fourth Proportional to 325,070.52, 448,645.20 and 197,721.48

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Solution

The fourth proportional to 325,070.52, 448,645.20 and 197,721.48 is: 272,884.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,070.52 : 448,645.20 = 197,721.48 : x
  2. Step 2: Convert to fraction form
    325,070.52/448,645.20 = 197,721.48/x
  3. Step 3: Cross multiply
    325,070.52x = 448,645.20 × 197,721.48
  4. Step 4: Simplify right side
    325,070.52x = 88,706,792,938.90
  5. Step 5: Solve for x
    x = 88,706,792,938.90/325,070.52
  6. Step 6: Final answer
    x = 272,884.77

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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.