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Finding the Fourth Proportional to 519,887.64, 779,859.20 and 164,930.04

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Solution

The fourth proportional to 519,887.64, 779,859.20 and 164,930.04 is: 247,403.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,887.64 : 779,859.20 = 164,930.04 : x
  2. Step 2: Convert to fraction form
    519,887.64/779,859.20 = 164,930.04/x
  3. Step 3: Cross multiply
    519,887.64x = 779,859.20 × 164,930.04
  4. Step 4: Simplify right side
    519,887.64x = 128,622,209,050.37
  5. Step 5: Solve for x
    x = 128,622,209,050.37/519,887.64
  6. Step 6: Final answer
    x = 247,403.86

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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.