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Finding the Fourth Proportional to 172,968.95, 259,491.02 and 53,026.36

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Solution

The fourth proportional to 172,968.95, 259,491.02 and 53,026.36 is: 79,551.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,968.95 : 259,491.02 = 53,026.36 : x
  2. Step 2: Convert to fraction form
    172,968.95/259,491.02 = 53,026.36/x
  3. Step 3: Cross multiply
    172,968.95x = 259,491.02 × 53,026.36
  4. Step 4: Simplify right side
    172,968.95x = 13,759,863,329.43
  5. Step 5: Solve for x
    x = 13,759,863,329.43/172,968.95
  6. Step 6: Final answer
    x = 79,551.06

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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.