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Finding the Fourth Proportional to 221,903.90, 332,661.45 and 133,063.10

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Solution

The fourth proportional to 221,903.90, 332,661.45 and 133,063.10 is: 199,478.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,903.90 : 332,661.45 = 133,063.10 : x
  2. Step 2: Convert to fraction form
    221,903.90/332,661.45 = 133,063.10/x
  3. Step 3: Cross multiply
    221,903.90x = 332,661.45 × 133,063.10
  4. Step 4: Simplify right side
    221,903.90x = 44,264,963,787.50
  5. Step 5: Solve for x
    x = 44,264,963,787.50/221,903.90
  6. Step 6: Final answer
    x = 199,478.08

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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.