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Finding the Fourth Proportional to 306,021.30, 459,075.15 and 95,637.30

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Solution

The fourth proportional to 306,021.30, 459,075.15 and 95,637.30 is: 143,469.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,021.30 : 459,075.15 = 95,637.30 : x
  2. Step 2: Convert to fraction form
    306,021.30/459,075.15 = 95,637.30/x
  3. Step 3: Cross multiply
    306,021.30x = 459,075.15 × 95,637.30
  4. Step 4: Simplify right side
    306,021.30x = 43,904,707,843.10
  5. Step 5: Solve for x
    x = 43,904,707,843.10/306,021.30
  6. Step 6: Final answer
    x = 143,469.45

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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.