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Finding the Fourth Proportional to 261,754.80, 392,632.20 and 261,754.80

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Solution

The fourth proportional to 261,754.80, 392,632.20 and 261,754.80 is: 392,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,754.80 : 392,632.20 = 261,754.80 : x
  2. Step 2: Convert to fraction form
    261,754.80/392,632.20 = 261,754.80/x
  3. Step 3: Cross multiply
    261,754.80x = 392,632.20 × 261,754.80
  4. Step 4: Simplify right side
    261,754.80x = 102,773,362,984.56
  5. Step 5: Solve for x
    x = 102,773,362,984.56/261,754.80
  6. Step 6: Final answer
    x = 392,632.20

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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.