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Finding the Fourth Proportional to 172,954.80, 259,541.55 and 101,877.30

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Solution

The fourth proportional to 172,954.80, 259,541.55 and 101,877.30 is: 152,880.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,954.80 : 259,541.55 = 101,877.30 : x
  2. Step 2: Convert to fraction form
    172,954.80/259,541.55 = 101,877.30/x
  3. Step 3: Cross multiply
    172,954.80x = 259,541.55 × 101,877.30
  4. Step 4: Simplify right side
    172,954.80x = 26,441,392,351.82
  5. Step 5: Solve for x
    x = 26,441,392,351.82/172,954.80
  6. Step 6: Final answer
    x = 152,880.36

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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.