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Finding the Fourth Proportional to 310,721.60, 466,092.12 and 100,361.36

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Solution

The fourth proportional to 310,721.60, 466,092.12 and 100,361.36 is: 150,545.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,721.60 : 466,092.12 = 100,361.36 : x
  2. Step 2: Convert to fraction form
    310,721.60/466,092.12 = 100,361.36/x
  3. Step 3: Cross multiply
    310,721.60x = 466,092.12 × 100,361.36
  4. Step 4: Simplify right side
    310,721.60x = 46,777,639,048.48
  5. Step 5: Solve for x
    x = 46,777,639,048.48/310,721.60
  6. Step 6: Final answer
    x = 150,545.18

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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.