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Finding the Fourth Proportional to 366,948.99, 550,398.72 and 100,687.20

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Solution

The fourth proportional to 366,948.99, 550,398.72 and 100,687.20 is: 151,024.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,948.99 : 550,398.72 = 100,687.20 : x
  2. Step 2: Convert to fraction form
    366,948.99/550,398.72 = 100,687.20/x
  3. Step 3: Cross multiply
    366,948.99x = 550,398.72 × 100,687.20
  4. Step 4: Simplify right side
    366,948.99x = 55,418,106,000.38
  5. Step 5: Solve for x
    x = 55,418,106,000.38/366,948.99
  6. Step 6: Final answer
    x = 151,024.00

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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.