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Finding the Fourth Proportional to 172,897.10, 259,283.25 and 73,065.01

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Solution

The fourth proportional to 172,897.10, 259,283.25 and 73,065.01 is: 109,571.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,897.10 : 259,283.25 = 73,065.01 : x
  2. Step 2: Convert to fraction form
    172,897.10/259,283.25 = 73,065.01/x
  3. Step 3: Cross multiply
    172,897.10x = 259,283.25 × 73,065.01
  4. Step 4: Simplify right side
    172,897.10x = 18,944,532,605.87
  5. Step 5: Solve for x
    x = 18,944,532,605.87/172,897.10
  6. Step 6: Final answer
    x = 109,571.14

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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.