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Finding the Fourth Proportional to 555,046.76, 832,418.90 and 155,662.76

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Solution

The fourth proportional to 555,046.76, 832,418.90 and 155,662.76 is: 233,451.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,046.76 : 832,418.90 = 155,662.76 : x
  2. Step 2: Convert to fraction form
    555,046.76/832,418.90 = 155,662.76/x
  3. Step 3: Cross multiply
    555,046.76x = 832,418.90 × 155,662.76
  4. Step 4: Simplify right side
    555,046.76x = 129,576,623,450.16
  5. Step 5: Solve for x
    x = 129,576,623,450.16/555,046.76
  6. Step 6: Final answer
    x = 233,451.72

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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.