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Finding the Fourth Proportional to 216,802.73, 325,017.21 and 83,776.33

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Solution

The fourth proportional to 216,802.73, 325,017.21 and 83,776.33 is: 125,592.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,802.73 : 325,017.21 = 83,776.33 : x
  2. Step 2: Convert to fraction form
    216,802.73/325,017.21 = 83,776.33/x
  3. Step 3: Cross multiply
    216,802.73x = 325,017.21 × 83,776.33
  4. Step 4: Simplify right side
    216,802.73x = 27,228,747,461.61
  5. Step 5: Solve for x
    x = 27,228,747,461.61/216,802.73
  6. Step 6: Final answer
    x = 125,592.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.