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Finding the Fourth Proportional to 571,882.97, 857,830.61 and 172,527.21

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Solution

The fourth proportional to 571,882.97, 857,830.61 and 172,527.21 is: 258,792.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,882.97 : 857,830.61 = 172,527.21 : x
  2. Step 2: Convert to fraction form
    571,882.97/857,830.61 = 172,527.21/x
  3. Step 3: Cross multiply
    571,882.97x = 857,830.61 × 172,527.21
  4. Step 4: Simplify right side
    571,882.97x = 147,999,122,227.22
  5. Step 5: Solve for x
    x = 147,999,122,227.22/571,882.97
  6. Step 6: Final answer
    x = 258,792.67

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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.