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Finding the Fourth Proportional to 221,148.94, 331,851.90 and 93,055.84

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Solution

The fourth proportional to 221,148.94, 331,851.90 and 93,055.84 is: 139,637.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,148.94 : 331,851.90 = 93,055.84 : x
  2. Step 2: Convert to fraction form
    221,148.94/331,851.90 = 93,055.84/x
  3. Step 3: Cross multiply
    221,148.94x = 331,851.90 × 93,055.84
  4. Step 4: Simplify right side
    221,148.94x = 30,880,757,310.10
  5. Step 5: Solve for x
    x = 30,880,757,310.10/221,148.94
  6. Step 6: Final answer
    x = 139,637.83

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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.