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Finding the Fourth Proportional to 547,632.60, 821,526.72 and 168,584.88

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Solution

The fourth proportional to 547,632.60, 821,526.72 and 168,584.88 is: 252,901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,632.60 : 821,526.72 = 168,584.88 : x
  2. Step 2: Convert to fraction form
    547,632.60/821,526.72 = 168,584.88/x
  3. Step 3: Cross multiply
    547,632.60x = 821,526.72 × 168,584.88
  4. Step 4: Simplify right side
    547,632.60x = 138,496,983,507.99
  5. Step 5: Solve for x
    x = 138,496,983,507.99/547,632.60
  6. Step 6: Final answer
    x = 252,901.28

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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.