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Finding the Fourth Proportional to 173,043.30, 259,564.95 and 138,051.30

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Solution

The fourth proportional to 173,043.30, 259,564.95 and 138,051.30 is: 207,076.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,043.30 : 259,564.95 = 138,051.30 : x
  2. Step 2: Convert to fraction form
    173,043.30/259,564.95 = 138,051.30/x
  3. Step 3: Cross multiply
    173,043.30x = 259,564.95 × 138,051.30
  4. Step 4: Simplify right side
    173,043.30x = 35,833,278,781.94
  5. Step 5: Solve for x
    x = 35,833,278,781.94/173,043.30
  6. Step 6: Final answer
    x = 207,076.95

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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.