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Finding the Fourth Proportional to 272,579.00, 408,443.40 and 172,527.84

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Solution

The fourth proportional to 272,579.00, 408,443.40 and 172,527.84 is: 258,522.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,579.00 : 408,443.40 = 172,527.84 : x
  2. Step 2: Convert to fraction form
    272,579.00/408,443.40 = 172,527.84/x
  3. Step 3: Cross multiply
    272,579.00x = 408,443.40 × 172,527.84
  4. Step 4: Simplify right side
    272,579.00x = 70,467,857,564.26
  5. Step 5: Solve for x
    x = 70,467,857,564.26/272,579.00
  6. Step 6: Final answer
    x = 258,522.70

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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.