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Finding the Fourth Proportional to 192,032.88, 287,815.98 and 135,889.45

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Solution

The fourth proportional to 192,032.88, 287,815.98 and 135,889.45 is: 203,669.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,032.88 : 287,815.98 = 135,889.45 : x
  2. Step 2: Convert to fraction form
    192,032.88/287,815.98 = 135,889.45/x
  3. Step 3: Cross multiply
    192,032.88x = 287,815.98 × 135,889.45
  4. Step 4: Simplify right side
    192,032.88x = 39,111,155,013.46
  5. Step 5: Solve for x
    x = 39,111,155,013.46/192,032.88
  6. Step 6: Final answer
    x = 203,669.06

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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.