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Finding the Fourth Proportional to 221,880.57, 332,903.96 and 115,197.93

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Solution

The fourth proportional to 221,880.57, 332,903.96 and 115,197.93 is: 172,840.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,880.57 : 332,903.96 = 115,197.93 : x
  2. Step 2: Convert to fraction form
    221,880.57/332,903.96 = 115,197.93/x
  3. Step 3: Cross multiply
    221,880.57x = 332,903.96 × 115,197.93
  4. Step 4: Simplify right side
    221,880.57x = 38,349,846,936.81
  5. Step 5: Solve for x
    x = 38,349,846,936.81/221,880.57
  6. Step 6: Final answer
    x = 172,840.04

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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.