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Finding the Fourth Proportional to 221,149.94, 331,853.40 and 93,056.84

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Solution

The fourth proportional to 221,149.94, 331,853.40 and 93,056.84 is: 139,639.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,149.94 : 331,853.40 = 93,056.84 : x
  2. Step 2: Convert to fraction form
    221,149.94/331,853.40 = 93,056.84/x
  3. Step 3: Cross multiply
    221,149.94x = 331,853.40 × 93,056.84
  4. Step 4: Simplify right side
    221,149.94x = 30,881,228,747.26
  5. Step 5: Solve for x
    x = 30,881,228,747.26/221,149.94
  6. Step 6: Final answer
    x = 139,639.33

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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.