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Finding the Fourth Proportional to 219,863.55, 328,811.18 and 184,434.15

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Solution

The fourth proportional to 219,863.55, 328,811.18 and 184,434.15 is: 275,825.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,863.55 : 328,811.18 = 184,434.15 : x
  2. Step 2: Convert to fraction form
    219,863.55/328,811.18 = 184,434.15/x
  3. Step 3: Cross multiply
    219,863.55x = 328,811.18 × 184,434.15
  4. Step 4: Simplify right side
    219,863.55x = 60,644,009,571.63
  5. Step 5: Solve for x
    x = 60,644,009,571.63/219,863.55
  6. Step 6: Final answer
    x = 275,825.66

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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.