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Finding the Fourth Proportional to 523,035.30, 784,686.60 and 168,052.80

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Solution

The fourth proportional to 523,035.30, 784,686.60 and 168,052.80 is: 252,122.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,035.30 : 784,686.60 = 168,052.80 : x
  2. Step 2: Convert to fraction form
    523,035.30/784,686.60 = 168,052.80/x
  3. Step 3: Cross multiply
    523,035.30x = 784,686.60 × 168,052.80
  4. Step 4: Simplify right side
    523,035.30x = 131,868,780,252.48
  5. Step 5: Solve for x
    x = 131,868,780,252.48/523,035.30
  6. Step 6: Final answer
    x = 252,122.14

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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.