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Finding the Fourth Proportional to 172,376.47, 258,340.69 and 96,471.87

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Solution

The fourth proportional to 172,376.47, 258,340.69 and 96,471.87 is: 144,582.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,376.47 : 258,340.69 = 96,471.87 : x
  2. Step 2: Convert to fraction form
    172,376.47/258,340.69 = 96,471.87/x
  3. Step 3: Cross multiply
    172,376.47x = 258,340.69 × 96,471.87
  4. Step 4: Simplify right side
    172,376.47x = 24,922,609,461.39
  5. Step 5: Solve for x
    x = 24,922,609,461.39/172,376.47
  6. Step 6: Final answer
    x = 144,582.43

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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.