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Finding the Fourth Proportional to 172,127.78, 258,184.65 and 59,833.46

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Solution

The fourth proportional to 172,127.78, 258,184.65 and 59,833.46 is: 89,747.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,127.78 : 258,184.65 = 59,833.46 : x
  2. Step 2: Convert to fraction form
    172,127.78/258,184.65 = 59,833.46/x
  3. Step 3: Cross multiply
    172,127.78x = 258,184.65 × 59,833.46
  4. Step 4: Simplify right side
    172,127.78x = 15,448,080,928.39
  5. Step 5: Solve for x
    x = 15,448,080,928.39/172,127.78
  6. Step 6: Final answer
    x = 89,747.75

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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.