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Finding the Fourth Proportional to 219,036.51, 328,505.22 and 100,593.99

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Solution

The fourth proportional to 219,036.51, 328,505.22 and 100,593.99 is: 150,868.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,036.51 : 328,505.22 = 100,593.99 : x
  2. Step 2: Convert to fraction form
    219,036.51/328,505.22 = 100,593.99/x
  3. Step 3: Cross multiply
    219,036.51x = 328,505.22 × 100,593.99
  4. Step 4: Simplify right side
    219,036.51x = 33,045,650,815.63
  5. Step 5: Solve for x
    x = 33,045,650,815.63/219,036.51
  6. Step 6: Final answer
    x = 150,868.23

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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.