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Finding the Fourth Proportional to 323,395.70, 485,166.27 and 98,737.34

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Solution

The fourth proportional to 323,395.70, 485,166.27 and 98,737.34 is: 148,128.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,395.70 : 485,166.27 = 98,737.34 : x
  2. Step 2: Convert to fraction form
    323,395.70/485,166.27 = 98,737.34/x
  3. Step 3: Cross multiply
    323,395.70x = 485,166.27 × 98,737.34
  4. Step 4: Simplify right side
    323,395.70x = 47,904,026,957.52
  5. Step 5: Solve for x
    x = 47,904,026,957.52/323,395.70
  6. Step 6: Final answer
    x = 148,128.21

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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.