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Finding the Fourth Proportional to 228,403.80, 315,124.78 and 132,892.04

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Solution

The fourth proportional to 228,403.80, 315,124.78 and 132,892.04 is: 183,348.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,403.80 : 315,124.78 = 132,892.04 : x
  2. Step 2: Convert to fraction form
    228,403.80/315,124.78 = 132,892.04/x
  3. Step 3: Cross multiply
    228,403.80x = 315,124.78 × 132,892.04
  4. Step 4: Simplify right side
    228,403.80x = 41,877,574,868.75
  5. Step 5: Solve for x
    x = 41,877,574,868.75/228,403.80
  6. Step 6: Final answer
    x = 183,348.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.