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Finding the Fourth Proportional to 172,477.81, 258,759.78 and 60,159.64

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Solution

The fourth proportional to 172,477.81, 258,759.78 and 60,159.64 is: 90,254.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,477.81 : 258,759.78 = 60,159.64 : x
  2. Step 2: Convert to fraction form
    172,477.81/258,759.78 = 60,159.64/x
  3. Step 3: Cross multiply
    172,477.81x = 258,759.78 × 60,159.64
  4. Step 4: Simplify right side
    172,477.81x = 15,566,895,211.28
  5. Step 5: Solve for x
    x = 15,566,895,211.28/172,477.81
  6. Step 6: Final answer
    x = 90,254.48

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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.