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Finding the Fourth Proportional to 366,942.99, 550,389.72 and 100,681.20

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Solution

The fourth proportional to 366,942.99, 550,389.72 and 100,681.20 is: 151,015.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,942.99 : 550,389.72 = 100,681.20 : x
  2. Step 2: Convert to fraction form
    366,942.99/550,389.72 = 100,681.20/x
  3. Step 3: Cross multiply
    366,942.99x = 550,389.72 × 100,681.20
  4. Step 4: Simplify right side
    366,942.99x = 55,413,897,477.26
  5. Step 5: Solve for x
    x = 55,413,897,477.26/366,942.99
  6. Step 6: Final answer
    x = 151,015.01

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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.