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Finding the Fourth Proportional to 321,709.53, 482,250.51 and 153,184.58

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Solution

The fourth proportional to 321,709.53, 482,250.51 and 153,184.58 is: 229,627.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,709.53 : 482,250.51 = 153,184.58 : x
  2. Step 2: Convert to fraction form
    321,709.53/482,250.51 = 153,184.58/x
  3. Step 3: Cross multiply
    321,709.53x = 482,250.51 × 153,184.58
  4. Step 4: Simplify right side
    321,709.53x = 73,873,339,417.88
  5. Step 5: Solve for x
    x = 73,873,339,417.88/321,709.53
  6. Step 6: Final answer
    x = 229,627.45

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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.