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Finding the Fourth Proportional to 147,654.55, 203,763.22 and 80,586.55

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Solution

The fourth proportional to 147,654.55, 203,763.22 and 80,586.55 is: 111,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,654.55 : 203,763.22 = 80,586.55 : x
  2. Step 2: Convert to fraction form
    147,654.55/203,763.22 = 80,586.55/x
  3. Step 3: Cross multiply
    147,654.55x = 203,763.22 × 80,586.55
  4. Step 4: Simplify right side
    147,654.55x = 16,420,574,916.69
  5. Step 5: Solve for x
    x = 16,420,574,916.69/147,654.55
  6. Step 6: Final answer
    x = 111,209.41

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1.5x scale

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.