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Finding the Fourth Proportional to 172,894.50, 238,594.41 and 93,406.50

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Solution

The fourth proportional to 172,894.50, 238,594.41 and 93,406.50 is: 128,900.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,894.50 : 238,594.41 = 93,406.50 : x
  2. Step 2: Convert to fraction form
    172,894.50/238,594.41 = 93,406.50/x
  3. Step 3: Cross multiply
    172,894.50x = 238,594.41 × 93,406.50
  4. Step 4: Simplify right side
    172,894.50x = 22,286,268,757.67
  5. Step 5: Solve for x
    x = 22,286,268,757.67/172,894.50
  6. Step 6: Final answer
    x = 128,900.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.