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Finding the Fourth Proportional to 611,025.28, 916,553.28 and 167,792

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Solution

The fourth proportional to 611,025.28, 916,553.28 and 167,792 is: 251,692.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,025.28 : 916,553.28 = 167,792 : x
  2. Step 2: Convert to fraction form
    611,025.28/916,553.28 = 167,792/x
  3. Step 3: Cross multiply
    611,025.28x = 916,553.28 × 167,792
  4. Step 4: Simplify right side
    611,025.28x = 153,790,307,957.76
  5. Step 5: Solve for x
    x = 153,790,307,957.76/611,025.28
  6. Step 6: Final answer
    x = 251,692.22

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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.