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Finding the Fourth Proportional to 172,194.81, 258,409.77 and 59,873.91

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Solution

The fourth proportional to 172,194.81, 258,409.77 and 59,873.91 is: 89,851.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,194.81 : 258,409.77 = 59,873.91 : x
  2. Step 2: Convert to fraction form
    172,194.81/258,409.77 = 59,873.91/x
  3. Step 3: Cross multiply
    172,194.81x = 258,409.77 × 59,873.91
  4. Step 4: Simplify right side
    172,194.81x = 15,472,003,013.71
  5. Step 5: Solve for x
    x = 15,472,003,013.71/172,194.81
  6. Step 6: Final answer
    x = 89,851.74

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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.