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Finding the Fourth Proportional to 321,013.80, 481,407.12 and 93,262.04

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Solution

The fourth proportional to 321,013.80, 481,407.12 and 93,262.04 is: 139,860.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,013.80 : 481,407.12 = 93,262.04 : x
  2. Step 2: Convert to fraction form
    321,013.80/481,407.12 = 93,262.04/x
  3. Step 3: Cross multiply
    321,013.80x = 481,407.12 × 93,262.04
  4. Step 4: Simplify right side
    321,013.80x = 44,897,011,285.24
  5. Step 5: Solve for x
    x = 44,897,011,285.24/321,013.80
  6. Step 6: Final answer
    x = 139,860.07

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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.