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Finding the Fourth Proportional to 321,487.08, 482,075.10 and 111,051.24

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Solution

The fourth proportional to 321,487.08, 482,075.10 and 111,051.24 is: 166,523.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,487.08 : 482,075.10 = 111,051.24 : x
  2. Step 2: Convert to fraction form
    321,487.08/482,075.10 = 111,051.24/x
  3. Step 3: Cross multiply
    321,487.08x = 482,075.10 × 111,051.24
  4. Step 4: Simplify right side
    321,487.08x = 53,535,037,628.12
  5. Step 5: Solve for x
    x = 53,535,037,628.12/321,487.08
  6. Step 6: Final answer
    x = 166,523.14

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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.