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Finding the Fourth Proportional to 172,497.89, 258,664.88 and 60,164.45

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Solution

The fourth proportional to 172,497.89, 258,664.88 and 60,164.45 is: 90,218.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,497.89 : 258,664.88 = 60,164.45 : x
  2. Step 2: Convert to fraction form
    172,497.89/258,664.88 = 60,164.45/x
  3. Step 3: Cross multiply
    172,497.89x = 258,664.88 × 60,164.45
  4. Step 4: Simplify right side
    172,497.89x = 15,562,431,036.59
  5. Step 5: Solve for x
    x = 15,562,431,036.59/172,497.89
  6. Step 6: Final answer
    x = 90,218.10

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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.